diff --git a/Orange/widgets/data/icons/AggregateColumns.svg b/Orange/widgets/data/icons/AggregateColumns.svg
index c493cda1ff6..0911520ccd3 100644
--- a/Orange/widgets/data/icons/AggregateColumns.svg
+++ b/Orange/widgets/data/icons/AggregateColumns.svg
@@ -1,12 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!-- Generator: Adobe Illustrator 25.2.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 48 48" style="enable-background:new 0 0 48 48;" xml:space="preserve">
-<style type="text/css">
-	.st0{fill:#333333;}
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
 </style>
-<path class="st0" d="M8.8,4C5.9,4,3.6,6.3,3.5,9.2c0,2.9,2.3,5.3,5.2,5.3S14,12.2,14,9.3C14,6.5,11.7,4.1,8.8,4z"/>
-<path class="st0" d="M24.1,4c-2.9,0-5.3,2.3-5.3,5.2s2.3,5.3,5.2,5.3s5.3-2.3,5.3-5.2l0,0C29.3,6.5,27,4.1,24.1,4z"/>
-<path class="st0" d="M39.3,4C36.4,4,34,6.3,34,9.2s2.3,5.3,5.2,5.3s5.3-2.3,5.3-5.2l0,0C44.5,6.5,42.2,4.1,39.3,4z"/>
-<polygon class="st0" points="25,36.8 23,36.8 23,27.2 7.7,27.2 7.7,17.3 9.7,17.3 9.7,25.2 23,25.2 23,17.3 25,17.3 25,25.2   38.3,25.2 38.3,17.3 40.3,17.3 40.3,27.2 25,27.2 "/>
-<polygon class="st0" points="28.4,33.4 24,35.3 19.6,33.4 24,43.9 "/>
+</defs>
+<path class="ColorScheme-Text" fill="currentColor" d="M8.8,4C5.9,4,3.6,6.3,3.5,9.2c0,2.9,2.3,5.3,5.2,5.3S14,12.2,14,9.3C14,6.5,11.7,4.1,8.8,4z"/>
+<path class="ColorScheme-Text" fill="currentColor" d="M24.1,4c-2.9,0-5.3,2.3-5.3,5.2s2.3,5.3,5.2,5.3s5.3-2.3,5.3-5.2l0,0C29.3,6.5,27,4.1,24.1,4z"/>
+<path class="ColorScheme-Text" fill="currentColor" d="M39.3,4C36.4,4,34,6.3,34,9.2s2.3,5.3,5.2,5.3s5.3-2.3,5.3-5.2l0,0C44.5,6.5,42.2,4.1,39.3,4z"/>
+<polygon class="ColorScheme-Text" fill="currentColor" points="25,36.8 23,36.8 23,27.2 7.7,27.2 7.7,17.3 9.7,17.3 9.7,25.2 23,25.2 23,17.3 25,17.3 25,25.2   38.3,25.2 38.3,17.3 40.3,17.3 40.3,27.2 25,27.2 "/>
+<polygon class="ColorScheme-Text" fill="currentColor" points="28.4,33.4 24,35.3 19.6,33.4 24,43.9 "/>
 </svg>
\ No newline at end of file
diff --git a/Orange/widgets/data/icons/CSVFile.svg b/Orange/widgets/data/icons/CSVFile.svg
index f5150dc3698..9059ab60cd2 100644
--- a/Orange/widgets/data/icons/CSVFile.svg
+++ b/Orange/widgets/data/icons/CSVFile.svg
@@ -1,132 +1,32 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!-- Generator: Adobe Illustrator 16.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
-
-<svg
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   version="1.1"
-   id="Layer_1"
-   x="0px"
-   y="0px"
-   width="48px"
-   height="48px"
-   viewBox="0 0 48 48"
-   enable-background="new 0 0 48 48"
-   xml:space="preserve"
-   inkscape:version="0.91 r13725"
-   sodipodi:docname="File.svg"><metadata
-     id="metadata4304"><rdf:RDF><cc:Work
-         rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
-           rdf:resource="http://purl.org/dc/dcmitype/StillImage" /><dc:title></dc:title></cc:Work></rdf:RDF></metadata><defs
-     id="defs4302" /><sodipodi:namedview
-     pagecolor="#ffffff"
-     bordercolor="#666666"
-     borderopacity="1"
-     objecttolerance="10"
-     gridtolerance="10"
-     guidetolerance="10"
-     inkscape:pageopacity="0"
-     inkscape:pageshadow="2"
-     inkscape:window-width="1415"
-     inkscape:window-height="1032"
-     id="namedview4300"
-     showgrid="true"
-     inkscape:zoom="18.162764"
-     inkscape:cx="19.595384"
-     inkscape:cy="24.654246"
-     inkscape:window-x="42"
-     inkscape:window-y="69"
-     inkscape:window-maximized="0"
-     inkscape:current-layer="Layer_1"><inkscape:grid
-       type="xygrid"
-       id="grid4306"
-       empspacing="4" /></sodipodi:namedview><path
-     fill="#FFFFFF"
-     d="M25,8H13v32h22V17c0-4.123-8-1-8-1C28,12,27,8,25,8z"
-     id="path4296" /><path
-     fill="#333333"
-     d="M28,6H13h-2v2v32v2h2h22h2v-2V16v-2L28,6z M35,40H13V8h12c2,0,3,4,2,8c0,0,8-3.123,8,1V40z"
-     id="path4298" /><rect
-     style="opacity:1;fill:#333333;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
-     id="rect4308"
-     width="5"
-     height="2.0448074"
-     x="14.072981"
-     y="16.955193" /><rect
-     y="16.955193"
-     x="21.01025"
-     height="2.0448074"
-     width="5"
-     id="rect4312"
-     style="opacity:1;fill:#333333;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1" /><rect
-     style="opacity:1;fill:#333333;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
-     id="rect4314"
-     width="5"
-     height="2.0448074"
-     x="28.002579"
-     y="16.955193" /><rect
-     y="12.991038"
-     x="14.072981"
-     height="2.0448074"
-     width="5"
-     id="rect4327"
-     style="opacity:1;fill:#333333;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1" /><rect
-     style="opacity:1;fill:#333333;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
-     id="rect4329"
-     width="5"
-     height="2.0448074"
-     x="21.01025"
-     y="12.991038" /><rect
-     y="24.938559"
-     x="14.072981"
-     height="2.0448074"
-     width="5"
-     id="rect4333"
-     style="opacity:1;fill:#333333;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1" /><rect
-     style="opacity:1;fill:#333333;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
-     id="rect4335"
-     width="5"
-     height="2.0448074"
-     x="21.01025"
-     y="24.938559" /><rect
-     y="24.938559"
-     x="28.002579"
-     height="2.0448074"
-     width="5"
-     id="rect4337"
-     style="opacity:1;fill:#333333;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1" /><rect
-     style="opacity:1;fill:#333333;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
-     id="rect4339"
-     width="5"
-     height="2.0448074"
-     x="14.072981"
-     y="20.974405" /><rect
-     y="20.974405"
-     x="21.01025"
-     height="2.0448074"
-     width="5"
-     id="rect4341"
-     style="opacity:1;fill:#333333;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1" /><rect
-     style="opacity:1;fill:#333333;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:3;stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
-     id="rect4343"
-     width="5"
-     height="2.0448074"
-     x="28.002579"
-     y="20.974405" /><g
-     transform="scale(0.98335939,1.0169222)"
-     style="font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;font-size:9.23964787px;line-height:125%;font-family:sans-serif;-inkscape-font-specification:'sans-serif Bold';letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:0.1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
-     id="text4345"><path
-       d="m 20.030514,36.789195 q -0.478224,0.248135 -0.997052,0.374458 -0.518828,0.126323 -1.082771,0.126323 -1.682807,0 -2.666324,-0.938401 -0.983518,-0.942914 -0.983518,-2.553536 0,-1.615134 0.983518,-2.553535 0.983517,-0.942914 2.666324,-0.942914 0.563943,0 1.082771,0.126324 0.518828,0.126323 0.997052,0.374458 l 0,1.394068 q -0.482736,-0.329343 -0.951937,-0.482735 -0.4692,-0.153393 -0.988028,-0.153393 -0.929379,0 -1.461742,0.595524 -0.532362,0.595524 -0.532362,1.642203 0,1.042167 0.532362,1.637692 0.532363,0.595524 1.461742,0.595524 0.518828,0 0.988028,-0.153393 0.469201,-0.153392 0.951937,-0.482735 l 0,1.394068 z"
-       style=""
-       id="path4375" /><path
-       d="m 26.324122,30.635445 0,1.425649 q -0.554921,-0.248135 -1.082772,-0.374459 -0.527851,-0.126323 -0.997052,-0.126323 -0.622593,0 -0.920355,0.171439 -0.297762,0.171439 -0.297762,0.532362 0,0.270693 0.198508,0.424086 0.203019,0.148881 0.73087,0.257158 l 0.739894,0.148881 q 1.123375,0.225577 1.597088,0.685755 0.473712,0.460178 0.473712,1.308349 0,1.114352 -0.663197,1.660249 -0.658686,0.541385 -2.016662,0.541385 -0.640639,0 -1.285791,-0.121811 -0.645151,-0.121812 -1.290302,-0.360924 l 0,-1.466253 q 0.645151,0.342878 1.245187,0.518828 0.604547,0.171439 1.163979,0.171439 0.568455,0 0.870729,-0.189485 0.302273,-0.189485 0.302273,-0.541386 0,-0.315808 -0.207531,-0.487247 -0.20302,-0.171439 -0.81659,-0.306785 l -0.67222,-0.148881 q -1.010587,-0.216554 -1.479788,-0.690267 -0.464689,-0.473712 -0.464689,-1.276767 0,-1.006075 0.649663,-1.547461 0.649662,-0.541386 1.86778,-0.541386 0.55492,0 1.141421,0.08572 0.586502,0.08121 1.213607,0.248135 z"
-       style=""
-       id="path4377" /><path
-       d="m 27.510658,30.423402 1.745969,0 1.786572,4.971725 1.782061,-4.971725 1.745969,0 -2.494885,6.73574 -2.0708,0 -2.494886,-6.73574 z"
-       style=""
-       id="path4379" /></g></svg>
\ No newline at end of file
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="48px" height="48px" enable-background="new 0 0 48 48" version="1.1" viewBox="0 0 48 48" xml:space="preserve" xmlns="http://www.w3.org/2000/svg">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Background" style="fill:currentColor">
+    <path d="m25 8h-12v32h22v-23c0-4.123-8-1-8-1 1-4 0-8-2-8z"/>
+</g>
+<g class="ColorScheme-Text" style="fill:currentColor">
+    <path d="m28 6h-17v36h26v-28l-9-8zm7 34h-22v-32h12c2 0 3 4 2 8 0 0 8-3.123 8 1v23z"/>
+    <rect x="14.073" y="16.955" width="5" height="2.0448" />
+    <rect x="21.01" y="16.955" width="5" height="2.0448" />
+    <rect x="28.003" y="16.955" width="5" height="2.0448" />
+    <rect x="14.073" y="12.991" width="5" height="2.0448" />
+    <rect x="21.01" y="12.991" width="5" height="2.0448" />
+    <rect x="14.073" y="24.939" width="5" height="2.0448" />
+    <rect x="21.01" y="24.939" width="5" height="2.0448" />
+    <rect x="28.003" y="24.939" width="5" height="2.0448" />
+    <rect x="14.073" y="20.974" width="5" height="2.0448" />
+    <rect x="21.01" y="20.974" width="5" height="2.0448" />
+    <rect x="28.003" y="20.974" width="5" height="2.0448" />
+</g>
+<g transform="scale(.98336 1.0169)" class="ColorScheme-Text" style="fill:currentColor;stroke-width:.1">
+    <path d="m20.031 36.789q-0.47822 0.24814-0.99705 0.37446t-1.0828 0.12632q-1.6828 0-2.6663-0.9384-0.98352-0.94291-0.98352-2.5535 0-1.6151 0.98352-2.5535 0.98352-0.94291 2.6663-0.94291 0.56394 0 1.0828 0.12632 0.51883 0.12632 0.99705 0.37446v1.3941q-0.48274-0.32934-0.95194-0.48274-0.4692-0.15339-0.98803-0.15339-0.92938 0-1.4617 0.59552-0.53236 0.59552-0.53236 1.6422 0 1.0422 0.53236 1.6377 0.53236 0.59552 1.4617 0.59552 0.51883 0 0.98803-0.15339 0.4692-0.15339 0.95194-0.48274v1.3941z" />
+    <path d="m26.324 30.635v1.4256q-0.55492-0.24814-1.0828-0.37446-0.52785-0.12632-0.99705-0.12632-0.62259 0-0.92036 0.17144t-0.29776 0.53236q0 0.27069 0.19851 0.42409 0.20302 0.14888 0.73087 0.25716l0.73989 0.14888q1.1234 0.22558 1.5971 0.68576 0.47371 0.46018 0.47371 1.3083 0 1.1144-0.6632 1.6602-0.65869 0.54138-2.0167 0.54138-0.64064 0-1.2858-0.12181-0.64515-0.12181-1.2903-0.36092v-1.4663q0.64515 0.34288 1.2452 0.51883 0.60455 0.17144 1.164 0.17144 0.56846 0 0.87073-0.18948 0.30227-0.18948 0.30227-0.54139 0-0.31581-0.20753-0.48725-0.20302-0.17144-0.81659-0.30678l-0.67222-0.14888q-1.0106-0.21655-1.4798-0.69027-0.46469-0.47371-0.46469-1.2768 0-1.0061 0.64966-1.5475 0.64966-0.54139 1.8678-0.54139 0.55492 0 1.1414 0.08572 0.5865 0.08121 1.2136 0.24814z" />
+    <path d="m27.511 30.423h1.746l1.7866 4.9717 1.7821-4.9717h1.746l-2.4949 6.7357h-2.0708l-2.4949-6.7357z" />
+</g>
+</svg>
diff --git a/Orange/widgets/data/icons/Category-Data.svg b/Orange/widgets/data/icons/Category-Data.svg
index a0f390ad279..cd5d88f60c1 100644
--- a/Orange/widgets/data/icons/Category-Data.svg
+++ b/Orange/widgets/data/icons/Category-Data.svg
@@ -1,19 +1,27 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Generator: Adobe Illustrator 16.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px"
 	 width="24px" height="24px" viewBox="0 0 24 24" enable-background="new 0 0 24 24" xml:space="preserve">
-<g>
-	<rect x="1" y="1" fill="#333333" width="22" height="22"/>
-	<rect x="2.222" y="5.889" fill="#666666" width="19.557" height="15.889"/>
-	<rect x="2.222" y="16.889" fill="#FFFFFF" width="6.111" height="4.889"/>
-	<rect x="2.222" y="11.389" fill="#FFFFFF" width="6.111" height="4.889"/>
-	<rect x="2.222" y="5.889" fill="#FFFFFF" width="6.111" height="4.889"/>
-	<rect x="8.944" y="16.889" fill="#FFFFFF" width="6.111" height="4.889"/>
-	<rect x="8.944" y="11.389" fill="#FFFFFF" width="6.111" height="4.889"/>
-	<rect x="8.944" y="5.889" fill="#FFFFFF" width="6.111" height="4.889"/>
-	<rect x="15.667" y="16.889" fill="#FFFFFF" width="6.111" height="4.889"/>
-	<rect x="15.667" y="11.389" fill="#FFFFFF" width="6.111" height="4.889"/>
-	<rect x="15.667" y="5.889" fill="#FFFFFF" width="6.111" height="4.889"/>
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Text" style="fill:currentColor">
+	<rect x="1" y="1" width="22" height="22"/>
+	<rect x="2.222" y="5.889" width="19.557" height="15.889"/>
+</g>
+<g class="ColorScheme-Background" style="fill:currentColor">
+	<rect x="2.222" y="16.889" width="6.111" height="4.889"/>
+	<rect x="2.222" y="11.389" width="6.111" height="4.889"/>
+	<rect x="2.222" y="5.889" width="6.111" height="4.889"/>
+	<rect x="8.944" y="16.889" width="6.111" height="4.889"/>
+	<rect x="8.944" y="11.389" width="6.111" height="4.889"/>
+	<rect x="8.944" y="5.889" width="6.111" height="4.889"/>
+	<rect x="15.667" y="16.889" width="6.111" height="4.889"/>
+	<rect x="15.667" y="11.389" width="6.111" height="4.889"/>
+	<rect x="15.667" y="5.889" width="6.111" height="4.889"/>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/Colors.svg b/Orange/widgets/data/icons/Colors.svg
index c684a48eefd..d48664dc234 100644
--- a/Orange/widgets/data/icons/Colors.svg
+++ b/Orange/widgets/data/icons/Colors.svg
@@ -3,21 +3,32 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="47.8px" height="59.96px" viewBox="0 0 47.8 59.96" enable-background="new 0 0 47.8 59.96" xml:space="preserve">
-<path fill="#A7A9AC" stroke="#000000" stroke-width="1.9052" stroke-miterlimit="10" d="M29,32.46c-6.01-4.87,4.26-13.32-4.71-18.21
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+<path id="palette-outline" stroke-width="1.5" stroke-miterlimit="10" d="M29,32.46c-6.01-4.87,4.26-13.32-4.71-18.21
 	c-8.97-4.89-23.78,5-23.44,20.74c0.34,15.74,15.3,16.98,19.83,17.39c4.53,0.41,14.34-2.54,15.75-7.56
 	c1.82-6.47,1.68-10.08-1.93-12.11C32.52,31.59,32.2,35.05,29,32.46z"/>
-<ellipse fill="#FBB040" stroke="#000000" stroke-miterlimit="10" cx="22" cy="44.19" rx="4.31" ry="4.27"/>
-<ellipse fill="#8DC63F" stroke="#000000" stroke-miterlimit="10" cx="11.03" cy="39.31" rx="4.31" ry="4.27"/>
-<ellipse fill="#C49A6C" stroke="#000000" stroke-miterlimit="10" cx="10.15" cy="28.19" rx="4.31" ry="4.27"/>
-<ellipse fill="#FFF200" stroke="#000000" stroke-miterlimit="10" cx="19.27" cy="20.84" rx="4.31" ry="4.27"/>
-<rect x="-6.01" y="0" fill="none" width="59.82" height="59.82"/>
+</defs>
+	<use class="ColorScheme-Background" fill="currentColor" stroke="none" xlink:href="#palette-outline"/>
+	<use class="ColorScheme-Text" fill="currentColor" stroke="none" opacity="0.4" xlink:href="#palette-outline"/>
+	<use class="ColorScheme-Text" fill="none" stroke="currentColor" xlink:href="#palette-outline"/>
+<g style="ColorScheme-Text" stroke="currentColor">
+	<ellipse fill="#FBB040" stroke-miterlimit="10" cx="22" cy="44.19" rx="4.31" ry="4.27"/>
+	<ellipse fill="#8DC63F" stroke-miterlimit="10" cx="11.03" cy="39.31" rx="4.31" ry="4.27"/>
+	<ellipse fill="#C49A6C" stroke-miterlimit="10" cx="10.15" cy="28.19" rx="4.31" ry="4.27"/>
+	<ellipse fill="#FFF200" stroke-miterlimit="10" cx="19.27" cy="20.84" rx="4.31" ry="4.27"/>
+</g>
 <g>
 	
-		<rect x="37.01" y="14.82" transform="matrix(0.8987 0.4385 -0.4385 0.8987 14.1796 -14.7986)" fill="#333333" width="4.24" height="16.95"/>
-	<path fill="#333333" d="M32.23,32.59c-0.06,0-0.12,0-0.18,0c-1.57,0-3.07,0.87-3.81,2.38c-0.46,0.94-0.64,1.98-1.15,2.91
+	<rect class="ColorScheme-Text" fill="currentColor" x="37.01" y="14.82" transform="matrix(0.8987 0.4385 -0.4385 0.8987 14.1796 -14.7986)" width="4.24" height="16.95"/>
+	<path class="ColorScheme-Text" fill="currentColor" d="M32.23,32.59c-0.06,0-0.12,0-0.18,0c-1.57,0-3.07,0.87-3.81,2.38c-0.46,0.94-0.64,1.98-1.15,2.91
 		c-0.4,0.72-0.92,1.36-1.6,1.83c-0.96,0.67-2.17,1.08-3.32,1.32c-0.24,0.05-0.46,0.06-0.71,0.06c2.95,1.2,5.32,1.66,7.22,1.66
 		c5.71,0,7.16-4.07,7.16-4.07c0.61-1.25,0.54-2.65-0.06-3.8l0.02,0.01l0.74-1.52l-3.81-1.86L32.23,32.59z"/>
-	<path fill="#FFFFFF" d="M45.19,15.71l-3.81-1.86c-0.14-0.07-0.29-0.1-0.44-0.1c-0.11,0-0.22,0.02-0.32,0.05
+	<path class="ColorScheme-Background" fill="currentColor" d="M45.19,15.71l-3.81-1.86c-0.14-0.07-0.29-0.1-0.44-0.1c-0.11,0-0.22,0.02-0.32,0.05
 		c-0.25,0.09-0.46,0.27-0.57,0.51l-7.44,15.24c-0.12,0.24-0.13,0.51-0.05,0.76c0.03,0.08,0.08,0.14,0.12,0.21
 		c-0.34,0.03-0.66,0.22-0.82,0.55l-0.26,0.54c-1.83,0.15-3.44,1.24-4.25,2.92c-0.24,0.49-0.41,0.99-0.57,1.47
 		c-0.17,0.51-0.33,0.98-0.56,1.4c-0.35,0.64-0.78,1.14-1.29,1.49c-0.73,0.5-1.75,0.91-2.95,1.16c-0.15,0.03-0.29,0.04-0.52,0.04
diff --git a/Orange/widgets/data/icons/Concatenate.svg b/Orange/widgets/data/icons/Concatenate.svg
index b3ce1c56a8d..529c2c90279 100644
--- a/Orange/widgets/data/icons/Concatenate.svg
+++ b/Orange/widgets/data/icons/Concatenate.svg
@@ -2,34 +2,45 @@
 <!-- Generator: Adobe Illustrator 22.0.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 viewBox="-34.5 271.5 48 48" enable-background="new -34.5 271.5 48 48" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <g>
 	<g>
-		<path fill="#333333" d="M-28.708,274.865v16.994v2.428h6.069v-2.428h4.855v2.428h4.855v-2.428h4.855v2.428h4.855v-2.428h4.855
+		<path class="ColorScheme-Text" fill="currentColor" d="M-28.708,274.865v16.994v2.428h6.069v-2.428h4.855v2.428h4.855v-2.428h4.855v2.428h4.855v-2.428h4.855
 			v2.428h6.069v-2.428v-16.994H-28.708z M5.28,283.362v1.214v6.069h-9.711h-1.214h-9.711h-1.214h-9.711v-6.069v-1.214v-6.069h9.711
 			h1.214h9.711h1.214H5.28V283.362z"/>
-		<polygon fill="#666666" points="-4.431,277.292 -5.645,277.292 -5.645,283.362 -15.355,283.362 -15.355,277.292 -16.569,277.292 
+		<polygon  class="ColorScheme-Text" fill="currentColor" points="-4.431,277.292 -5.645,277.292 -5.645,283.362 -15.355,283.362 -15.355,277.292 -16.569,277.292
 			-16.569,283.362 -26.28,283.362 -26.28,284.575 -16.569,284.575 -16.569,290.645 -15.355,290.645 -15.355,284.575 -5.645,284.575 
 			-5.645,290.645 -4.431,290.645 -4.431,284.575 5.28,284.575 5.28,283.362 -4.431,283.362 		"/>
-		<rect x="-26.28" y="284.575" fill="#FFFFFF" width="9.711" height="6.069"/>
-		<rect x="-26.28" y="277.292" fill="#FFFFFF" width="9.711" height="6.069"/>
-		<rect x="-15.355" y="284.575" fill="#FFFFFF" width="9.711" height="6.069"/>
-		<rect x="-15.355" y="277.292" fill="#FFFFFF" width="9.711" height="6.069"/>
-		<rect x="-4.431" y="284.575" fill="#FFFFFF" width="9.711" height="6.069"/>
-		<rect x="-4.431" y="277.292" fill="#FFFFFF" width="9.711" height="6.069"/>
+		<g  class="ColorScheme-Background" fill="currentColor">
+		<rect x="-26.28" y="284.575" width="9.711" height="6.069"/>
+		<rect x="-26.28" y="277.292" width="9.711" height="6.069"/>
+		<rect x="-15.355" y="284.575" width="9.711" height="6.069"/>
+		<rect x="-15.355" y="277.292" width="9.711" height="6.069"/>
+		<rect x="-4.431" y="284.575" width="9.711" height="6.069"/>
+		<rect x="-4.431" y="277.292" width="9.711" height="6.069"/>
+		</g>
 	</g>
 	<g>
-		<path fill="#333333" d="M1.638,299.142v-2.428h-4.855v2.428h-4.855v-2.428h-4.855v2.428h-4.855v-2.428h-4.855v2.428h-6.069v16.994
+		<path  class="ColorScheme-Text" fill="currentColor" d="M1.638,299.142v-2.428h-4.855v2.428h-4.855v-2.428h-4.855v2.428h-4.855v-2.428h-4.855v2.428h-6.069v16.994
 			H7.708v-16.994H1.638z M5.28,306.425v1.214v6.069h-9.711h-1.214h-9.711h-1.214h-9.711v-6.069v-1.214v-6.069h9.711h1.214h9.711
 			h1.214H5.28V306.425z"/>
-		<polygon fill="#666666" points="-4.431,300.355 -5.645,300.355 -5.645,306.425 -15.355,306.425 -15.355,300.355 -16.569,300.355 
+		<polygon class="ColorScheme-Text" fill="currentColor" points="-4.431,300.355 -5.645,300.355 -5.645,306.425 -15.355,306.425 -15.355,300.355 -16.569,300.355
 			-16.569,306.425 -26.28,306.425 -26.28,307.638 -16.569,307.638 -16.569,313.708 -15.355,313.708 -15.355,307.638 -5.645,307.638 
 			-5.645,313.708 -4.431,313.708 -4.431,307.638 5.28,307.638 5.28,306.425 -4.431,306.425 		"/>
-		<rect x="-26.28" y="307.638" fill="#FFFFFF" width="9.711" height="6.069"/>
-		<rect x="-26.28" y="300.355" fill="#FFFFFF" width="9.711" height="6.069"/>
-		<rect x="-15.355" y="307.638" fill="#FFFFFF" width="9.711" height="6.069"/>
-		<rect x="-15.355" y="300.355" fill="#FFFFFF" width="9.711" height="6.069"/>
-		<rect x="-4.431" y="307.638" fill="#FFFFFF" width="9.711" height="6.069"/>
-		<rect x="-4.431" y="300.355" fill="#FFFFFF" width="9.711" height="6.069"/>
+		<g  class="ColorScheme-Background" fill="currentColor">
+		<rect x="-26.28" y="307.638" width="9.711" height="6.069"/>
+		<rect x="-26.28" y="300.355" width="9.711" height="6.069"/>
+		<rect x="-15.355" y="307.638" width="9.711" height="6.069"/>
+		<rect x="-15.355" y="300.355" width="9.711" height="6.069"/>
+		<rect x="-4.431" y="307.638" width="9.711" height="6.069"/>
+		<rect x="-4.431" y="300.355" width="9.711" height="6.069"/>
+		</g>
 	</g>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/Continuize.svg b/Orange/widgets/data/icons/Continuize.svg
index 1b894fe4194..7f483fab3d4 100644
--- a/Orange/widgets/data/icons/Continuize.svg
+++ b/Orange/widgets/data/icons/Continuize.svg
@@ -3,21 +3,32 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Disabled-Text { color: #666; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <g>
-	<path fill="#333333" d="M7.834,27.363c-0.97,0.313-1.863,0.666-2.686,1.05V34.5h10v-7.89c-0.634-0.072-1.268-0.123-1.9-0.123
+	<g class="ColorScheme-Text" fill="currentColor">
+	<path d="M7.834,27.363c-0.97,0.313-1.863,0.666-2.686,1.05V34.5h10v-7.89c-0.634-0.072-1.268-0.123-1.9-0.123
 		C11.454,26.487,9.633,26.782,7.834,27.363z"/>
-	<path fill="#333333" d="M13.246,22.5c0.636,0,1.271,0.034,1.902,0.092V18.5h-10v5.569c0.469-0.178,0.951-0.35,1.456-0.513
+	<path d="M13.246,22.5c0.636,0,1.271,0.034,1.902,0.092V18.5h-10v5.569c0.469-0.178,0.951-0.35,1.456-0.513
 		C8.776,22.855,11.011,22.5,13.246,22.5z"/>
-	<path fill="#333333" d="M24.22,25.39c0.507,0.248,1,0.509,1.49,0.768c1.16,0.613,2.268,1.184,3.438,1.528V13.5h-11v9.59
+	<path d="M24.22,25.39c0.507,0.248,1,0.509,1.49,0.768c1.16,0.613,2.268,1.184,3.438,1.528V13.5h-11v9.59
 		c0.681,0.163,1.358,0.349,2.026,0.579C21.427,24.102,22.713,24.648,24.22,25.39z"/>
-	<path fill="#333333" d="M23.839,29.693c-0.454-0.24-0.912-0.483-1.381-0.714c-1.363-0.669-2.505-1.155-3.591-1.529
+	<path d="M23.839,29.693c-0.454-0.24-0.912-0.483-1.381-0.714c-1.363-0.669-2.505-1.155-3.591-1.529
 		c-0.238-0.082-0.479-0.145-0.719-0.217V34.5h11v-2.693c-0.151-0.03-0.306-0.057-0.454-0.091
 		C26.847,31.284,25.317,30.476,23.839,29.693z"/>
-	<path fill="#333333" d="M32.639,32.13c-0.168,0-0.327-0.008-0.49-0.012V34.5h11v-3.709c-2.347,0.617-4.943,1.012-8.168,1.243
+	<path d="M32.639,32.13c-0.168,0-0.327-0.008-0.49-0.012V34.5h11v-3.709c-2.347,0.617-4.943,1.012-8.168,1.243
 		C34.084,32.1,33.34,32.13,32.639,32.13z"/>
-	<path fill="#333333" d="M34.693,28.046c3.46-0.25,6.098-0.691,8.455-1.412V21.5h-11v6.618c0.164,0.005,0.324,0.012,0.495,0.012
+	<path d="M34.693,28.046c3.46-0.25,6.098-0.691,8.455-1.412V21.5h-11v6.618c0.164,0.005,0.324,0.012,0.495,0.012
 		C33.25,28.13,33.882,28.104,34.693,28.046z"/>
-	<path fill="#666666" d="M45.908,26.797c-0.469,0.115-0.908,0.271-1.334,0.422c-0.186,0.066-0.373,0.132-0.559,0.193
+	</g>
+	<g class="ColorScheme-Disabled-Text" fill="currentColor">
+	<path d="M45.908,26.797c-0.469,0.115-0.908,0.271-1.334,0.422c-0.186,0.066-0.373,0.132-0.559,0.193
 		c-0.285,0.094-0.575,0.183-0.867,0.269c-2.358,0.691-4.989,1.117-8.383,1.362c-0.669,0.048-1.385,0.087-2.122,0.087
 		c-0.164,0-0.33-0.006-0.495-0.01c-0.915-0.023-1.854-0.111-2.771-0.325c-0.078-0.019-0.151-0.047-0.229-0.067
 		c-1.374-0.359-2.608-1-3.906-1.687c-0.48-0.254-0.965-0.51-1.463-0.754c-1.467-0.721-2.717-1.253-3.932-1.673
@@ -29,5 +40,6 @@
 		c0.075,0.018,0.151,0.028,0.227,0.044c1.012,0.218,2.022,0.312,3,0.333c0.163,0.004,0.329,0.011,0.49,0.011
 		c0.793,0,1.557-0.041,2.27-0.093c3.279-0.235,5.888-0.642,8.24-1.281c0.507-0.139,1.007-0.283,1.494-0.444
 		c0.199-0.065,0.398-0.137,0.598-0.207c0.379-0.134,0.76-0.271,1.148-0.366L45.908,26.797z"/>
+	</g>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/CreateClass.svg b/Orange/widgets/data/icons/CreateClass.svg
index f6087dff35c..da30a6839bb 100644
--- a/Orange/widgets/data/icons/CreateClass.svg
+++ b/Orange/widgets/data/icons/CreateClass.svg
@@ -3,26 +3,34 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<g>
-	<path fill="#333333" d="M6,6v36h36V6H6z M40,22L40,22v1l0,0v8l0,0v1l0,0v8l0,0H30h-1H19h-1H8l0,0V14l0,0h10h1h10h1h10l0,0V22z"/>
-	<path fill="#666666" d="M30,14h-1v8H19v-8h-1v8H8v-8l0,0v26l0,0v-8h10v8h1v-8h10v8h1v-8h10v-1H30v-8h10v-1H30V14z M18,31H8v-8h10
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Text" fill="currentColor">
+	<path d="M6,6v36h36V6H6z M40,22L40,22v1l0,0v8l0,0v1l0,0v8l0,0H30h-1H19h-1H8l0,0V14l0,0h10h1h10h1h10l0,0V22z"/>
+	<path d="M30,14h-1v8H19v-8h-1v8H8v-8l0,0v26l0,0v-8h10v8h1v-8h10v8h1v-8h10v-1H30v-8h10v-1H30V14z M18,31H8v-8h10
 		V31z M29,31H19v-8h10V31z"/>
-	<rect x="8" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="8" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="8" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="40" y="32" fill="#FFFFFF" width="0" height="8"/>
-	<rect x="30" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="40" y="23" fill="#FFFFFF" width="0" height="8"/>
-	<rect x="30" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="40" y="14" fill="#FFFFFF" width="0" height="8"/>
-	<rect x="30" y="14" fill="#FFFFFF" width="10" height="8"/>
 </g>
-<rect x="30" y="14" fill="#B5B5B5" width="10" height="8"/>
-<rect x="30" y="23" fill="#B5B5B5" width="10" height="8"/>
-<rect x="30" y="32" fill="#B5B5B5" width="10" height="8"/>
+<g class="ColorScheme-Background" fill="currentColor">
+	<rect x="8" y="32" width="10" height="8"/>
+	<rect x="8" y="23" width="10" height="8"/>
+	<rect x="8" y="14" width="10" height="8"/>
+	<rect x="19" y="32" width="10" height="8"/>
+	<rect x="19" y="23" width="10" height="8"/>
+	<rect x="19" y="14" width="10" height="8"/>
+	<rect x="30" y="32" width="10" height="8"/>
+	<rect x="30" y="23" width="10" height="8"/>
+	<rect x="30" y="14" width="10" height="8"/>
+</g>
+<g class="ColorScheme-Text" fill="currentColor">
+	<rect x="30" y="14" opacity="0.5" width="10" height="8"/>
+	<rect x="30" y="23" opacity="0.5" width="10" height="8"/>
+	<rect x="30" y="32" opacity="0.5" width="10" height="8"/>
+</g>
 <g>
 	<polygon stroke="#FFFFFF" stroke-width="0.49" stroke-miterlimit="10" points="14.915,48 33.765,18.344 30.148,16.395 
 		11.299,46.051 	"/>
diff --git a/Orange/widgets/data/icons/CreateInstance.svg b/Orange/widgets/data/icons/CreateInstance.svg
index 2a7b039df6d..d1762f2f1d8 100644
--- a/Orange/widgets/data/icons/CreateInstance.svg
+++ b/Orange/widgets/data/icons/CreateInstance.svg
@@ -3,26 +3,41 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <g>
-	<path fill="#333333" d="M6,6v36h36V6H6z M40,22L40,22v1l0,0v8l0,0v1l0,0v8l0,0H30h-1H19h-1H8l0,0V14l0,0h10h1h10h1h10l0,0V22z"/>
-	<path fill="#666666" d="M30,14h-1v8H19v-8h-1v8H8v-8l0,0v26l0,0v-8h10v8h1v-8h10v8h1v-8h10v-1H30v-8h10v-1H30V14z M18,31H8v-8h10
+	<path class="ColorScheme-Text" fill="currentColor" d="M6,6v36h36V6H6z M40,22L40,22v1l0,0v8l0,0v1l0,0v8l0,0H30h-1H19h-1H8l0,0V14l0,0h10h1h10h1h10l0,0V22z"/>
+	<path class="ColorScheme-Text" fill="currentColor" d="M30,14h-1v8H19v-8h-1v8H8v-8l0,0v26l0,0v-8h10v8h1v-8h10v8h1v-8h10v-1H30v-8h10v-1H30V14z M18,31H8v-8h10
 		V31z M29,31H19v-8h10V31z"/>
-	<rect x="8" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="8" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="8" y="14" fill="#B5B5B5" width="10" height="8"/>
-	<rect x="19" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="14" fill="#B5B5B5" width="10" height="8"/>
-	<rect x="40" y="32" fill="#FFFFFF" width="0" height="8"/>
-	<rect x="30" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="40" y="23" fill="#FFFFFF" width="0" height="8"/>
-	<rect x="30" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="40" y="14" fill="#FFFFFF" width="0" height="8"/>
-	<rect x="30" y="14" fill="#FFFFFF" width="10" height="8"/>
+	<g class="ColorScheme-Background" fill="currentColor">
+	<rect x="8" y="32" width="10" height="8"/>
+	<rect x="8" y="23" width="10" height="8"/>
+	<rect x="19" y="32" width="10" height="8"/>
+	<rect x="19" y="23" width="10" height="8"/>
+<!--	<rect x="40" y="32" width="0" height="8"/>-->
+	<rect x="30" y="32" width="10" height="8"/>
+<!--	<rect x="40" y="23" width="0" height="8"/>-->
+	<rect x="30" y="23" width="10" height="8"/>
+<!--	<rect x="40" y="14" width="0" height="8"/>-->
+	<rect x="30" y="14" width="10" height="8"/>
+	<rect x="30" y="23" width="10" height="8"/>
+	<rect x="30" y="32" width="10" height="8"/>
+
+	<rect x="8" y="14" width="10" height="8"/>
+	<rect x="19" y="14" width="10" height="8"/>
+	<rect x="30" y="14" width="10" height="8"/>
+	<g class="ColorScheme-Text" fill="currentColor" opacity="0.4">
+	<rect x="8" y="14" width="10" height="8"/>
+	<rect x="19" y="14" width="10" height="8"/>
+	<rect x="30" y="14" width="10" height="8"/>
+	</g>
+	</g>
 </g>
-<rect x="30" y="14" fill="#B5B5B5" width="10" height="8"/>
-<rect x="30" y="23" fill="#FFFFFF" width="10" height="8"/>
-<rect x="30" y="32" fill="#FFFFFF" width="10" height="8"/>
 <g>
 	<polygon stroke="#FFFFFF" stroke-width="0.49" stroke-miterlimit="10" points="14.915,48 33.765,18.344 30.148,16.395
 		11.299,46.051 	"/>
diff --git a/Orange/widgets/data/icons/DataInfo.svg b/Orange/widgets/data/icons/DataInfo.svg
index e883321055c..7cb5daa800b 100644
--- a/Orange/widgets/data/icons/DataInfo.svg
+++ b/Orange/widgets/data/icons/DataInfo.svg
@@ -1,17 +1,23 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Generator: Adobe Illustrator 16.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<g>
-	<path fill="#FFFFFF" d="M25,8H13v32h22V17c0-4.123-8-1-8-1C28,12,27,8,25,8z"/>
-	<path fill="#333333" d="M28,6H13h-2v2v32v2h2h22h2v-2V16v-2L28,6z M35,40H13V8h12c2,0,3,4,2,8c0,0,8-3.123,8,1V40z"/>
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Background" style="fill:currentColor">
+	<path d="M25,8H13v32h22V17c0-4.123-8-1-8-1C28,12,27,8,25,8z"/>
 </g>
-<g>
-	<path fill="#333333" d="M19.99,27.094c0.03-0.77,0.331-1.953,0.659-2.533c0.718-0.329,1.959-0.55,3.145-0.55
+<g class="ColorScheme-Text" style="fill:currentColor">
+	<path d="M28,6H13h-2v2v32v2h2h22h2v-2V16v-2L28,6z M35,40H13V8h12c2,0,3,4,2,8c0,0,8-3.123,8,1V40z"/>
+	<path d="M19.99,27.094c0.03-0.77,0.331-1.953,0.659-2.533c0.718-0.329,1.959-0.55,3.145-0.55
 		c0.719,0,1.708,0.108,2.176,0.302v10.743c0.578,0.081,1.487,0.274,1.955,0.495c0.085,0.302,0.136,0.965,0.136,1.541
 		c0,0.223,0,0.414-0.025,0.607h-8.096c0.051-0.661,0.246-1.57,0.438-2.01c0.387-0.305,1.05-0.578,1.599-0.771v-7.824H19.99z"/>
-	<path fill="#333333" d="M26.433,19.401c0,1.904-1.16,2.967-2.801,2.967c-1.869,0-2.87-1.033-2.87-2.967
+	<path d="M26.433,19.401c0,1.904-1.16,2.967-2.801,2.967c-1.869,0-2.87-1.033-2.87-2.967
 		c0-1.677,1.194-2.772,2.87-2.772C25.272,16.629,26.433,17.63,26.433,19.401z"/>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/DataSampler.svg b/Orange/widgets/data/icons/DataSampler.svg
index 740c83a99e8..48ba6ea31e6 100644
--- a/Orange/widgets/data/icons/DataSampler.svg
+++ b/Orange/widgets/data/icons/DataSampler.svg
@@ -1,24 +1,32 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Generator: Adobe Illustrator 16.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <g>
-	<path fill="#333333" d="M6,6v36h36V6H6z M40,22v1v8v1v8H30h-1H19h-1H8v-8v-1v-8v-1v-8h10h1h10h1h10V22z"/>
-	<path fill="#666666" d="M30,14h-1v8H19v-8h-1v8H8v1h10v8H8v1h10v8h1v-8h10v8h1v-8h10v-1H30v-8h10v-1H30V14z M29,31H19v-8h10V31z"/>
-	<rect x="8" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="8" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="8" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="30" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="30" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="30" y="14" fill="#FFFFFF" width="10" height="8"/>
+	<path class="ColorScheme-Text" fill="currentColor" d="M6,6v36h36V6H6z M40,22v1v8v1v8H30h-1H19h-1H8v-8v-1v-8v-1v-8h10h1h10h1h10V22z"/>
+	<path class="ColorScheme-Text" fill="currentColor" d="M30,14h-1v8H19v-8h-1v8H8v1h10v8H8v1h10v8h1v-8h10v8h1v-8h10v-1H30v-8h10v-1H30V14z M29,31H19v-8h10V31z"/>
+	<g class="ColorScheme-Background" fill="currentColor">
+		<rect x="8" y="32" width="10" height="8"/>
+		<rect x="8" y="23" width="10" height="8"/>
+		<rect x="8" y="14" width="10" height="8"/>
+		<rect x="19" y="32" width="10" height="8"/>
+		<rect x="19" y="23" width="10" height="8"/>
+		<rect x="19" y="14" width="10" height="8"/>
+		<rect x="30" y="32" width="10" height="8"/>
+		<rect x="30" y="23" width="10" height="8"/>
+		<rect x="30" y="14" width="10" height="8"/>
+	</g>
 </g>
 <path fill="none" d="M32.826,44.996c0.018,0,0.035,0.005,0.053,0.005C32.861,45.001,32.844,44.996,32.826,44.996L32.826,44.996z"/>
 <g>
-	<path d="M42.585,28.073l-7.538-3.752C34.49,24.042,33.861,24,33.536,24c-0.374,0-0.728,0.053-1.025,0.155l-8.499,2.946
+	<path class="ColorScheme-Text" fill="currentColor" d="M42.585,28.073l-7.538-3.752C34.49,24.042,33.861,24,33.536,24c-0.374,0-0.728,0.053-1.025,0.155l-8.499,2.946
 		c-0.899,0.313-1.579,1.266-1.583,2.217l-0.02,10.322c-0.001,0.917,0.593,1.879,1.414,2.288l7.538,3.75
 		c0.562,0.28,1.192,0.322,1.518,0.322c0.371,0,0.724-0.054,1.019-0.153l8.506-2.952c0.9-0.311,1.581-1.265,1.581-2.22L44,30.357
 		C44.003,29.457,43.395,28.475,42.585,28.073z M23.93,28.306c0.043-0.039,0.086-0.071,0.133-0.104
@@ -30,16 +38,16 @@
 		c-0.199,0.067-0.444,0.101-0.697,0.101c-0.018,0-0.035-0.005-0.053-0.005l0.07-11.846l9.945-3.39
 		c0.042,0.09,0.081,0.179,0.105,0.271C42.979,30.142,43,30.25,43,30.355L42.984,40.676z"/>
 	<g>
-		<path fill="#FFFFFF" d="M42.571,29.331c-0.054-0.062-0.112-0.12-0.171-0.175c-0.083-0.071-0.168-0.142-0.26-0.188l-7.539-3.752
+		<path class="ColorScheme-Background" fill="currentColor" d="M42.571,29.331c-0.054-0.062-0.112-0.12-0.171-0.175c-0.083-0.071-0.168-0.142-0.26-0.188l-7.539-3.752
 			C34.318,25.075,33.918,25,33.536,25c-0.255,0-0.502,0.033-0.702,0.102l-8.494,2.945c-0.098,0.034-0.188,0.094-0.277,0.155
 			c-0.045,0.033-0.09,0.065-0.133,0.104h0l8.709,4.394L42.571,29.331C42.572,29.332,42.572,29.332,42.571,29.331z M35.196,28.93
 			c-0.22,0.582-1.22,0.887-2.229,0.68s-1.65-0.848-1.43-1.432c0.221-0.582,1.22-0.887,2.229-0.678
 			C34.777,27.707,35.418,28.344,35.196,28.93z"/>
-		<path d="M33.766,27.5c-1.009-0.209-2.008,0.096-2.229,0.678c-0.221,0.584,0.42,1.225,1.43,1.432s2.01-0.098,2.229-0.68
+		<path class="ColorScheme-Text" fill="currentColor" d="M33.766,27.5c-1.009-0.209-2.008,0.096-2.229,0.678c-0.221,0.584,0.42,1.225,1.43,1.432s2.01-0.098,2.229-0.68
 			C35.418,28.344,34.777,27.707,33.766,27.5z"/>
 	</g>
 	<g>
-		<path fill="#FFFFFF" d="M23.625,28.691c-0.054,0.096-0.1,0.195-0.134,0.296c-0.033,0.111-0.061,0.224-0.061,0.335l-0.02,10.32
+		<path class="ColorScheme-Background" fill="currentColor" d="M23.625,28.691c-0.054,0.096-0.1,0.195-0.134,0.296c-0.033,0.111-0.061,0.224-0.061,0.335l-0.02,10.32
 			c-0.001,0.529,0.385,1.154,0.859,1.391l7.537,3.75c0.153,0.076,0.34,0.13,0.538,0.166l0.071-11.822L23.625,28.691z M26.723,39.455
 			c-0.074,0.936-0.664,1.436-1.316,1.117c-0.652-0.316-1.121-1.334-1.045-2.273c0.074-0.936,0.666-1.436,1.314-1.113
 			C26.33,37.502,26.799,38.518,26.723,39.455z M26.723,33.1c-0.074,0.934-0.664,1.434-1.316,1.117
@@ -47,17 +55,21 @@
 			 M28.963,34.279c0.074-0.936,0.665-1.436,1.316-1.115c0.652,0.318,1.121,1.336,1.046,2.27c-0.074,0.938-0.663,1.439-1.317,1.119
 			C29.356,36.234,28.888,35.217,28.963,34.279z M31.326,41.941c-0.075,0.934-0.664,1.436-1.318,1.115
 			c-0.651-0.316-1.119-1.334-1.045-2.271c0.074-0.936,0.667-1.434,1.316-1.115C30.932,39.988,31.4,41.004,31.326,41.941z"/>
-		<path d="M25.676,30.826c-0.648-0.32-1.24,0.182-1.314,1.115c-0.074,0.939,0.393,1.957,1.045,2.275
-			c0.652,0.316,1.242-0.184,1.316-1.117C26.799,32.162,26.33,31.146,25.676,30.826z"/>
-		<path d="M30.008,36.553c0.654,0.32,1.243-0.182,1.317-1.119c0.075-0.934-0.394-1.951-1.046-2.27
-			c-0.651-0.32-1.242,0.18-1.316,1.115C28.888,35.217,29.356,36.234,30.008,36.553z"/>
-		<path d="M30.279,39.67c-0.649-0.318-1.242,0.18-1.316,1.115c-0.074,0.938,0.394,1.955,1.045,2.271
-			c0.654,0.32,1.243-0.182,1.318-1.115C31.4,41.004,30.932,39.988,30.279,39.67z"/>
-		<path d="M25.676,37.186c-0.648-0.322-1.24,0.178-1.314,1.113c-0.076,0.939,0.393,1.957,1.045,2.273
-			c0.652,0.318,1.242-0.182,1.316-1.117C26.799,38.518,26.33,37.502,25.676,37.186z"/>
+		<g class="ColorScheme-Text" fill="currentColor">
+			<path d="M25.676,30.826c-0.648-0.32-1.24,0.182-1.314,1.115c-0.074,0.939,0.393,1.957,1.045,2.275
+				c0.652,0.316,1.242-0.184,1.316-1.117C26.799,32.162,26.33,31.146,25.676,30.826z"/>
+			<g class="ColorScheme-Text" fill="currentColor">
+				<path d="M30.008,36.553c0.654,0.32,1.243-0.182,1.317-1.119c0.075-0.934-0.394-1.951-1.046-2.27
+					c-0.651-0.32-1.242,0.18-1.316,1.115C28.888,35.217,29.356,36.234,30.008,36.553z"/>
+				<path d="M30.279,39.67c-0.649-0.318-1.242,0.18-1.316,1.115c-0.074,0.938,0.394,1.955,1.045,2.271
+					c0.654,0.32,1.243-0.182,1.318-1.115C31.4,41.004,30.932,39.988,30.279,39.67z"/>
+				<path d="M25.676,37.186c-0.648-0.322-1.24,0.178-1.314,1.113c-0.076,0.939,0.393,1.957,1.045,2.273
+					c0.652,0.318,1.242-0.182,1.316-1.117C26.799,38.518,26.33,37.502,25.676,37.186z"/>
+			</g>
+		</g>
 	</g>
 	<g>
-		<path fill="#FFFFFF" d="M42.947,30.032c-0.027-0.091-0.061-0.183-0.102-0.272l-9.948,3.391l-0.07,11.846
+		<path class="ColorScheme-Background" fill="currentColor" d="M42.947,30.032c-0.027-0.091-0.061-0.183-0.102-0.272l-9.948,3.391l-0.07,11.846
 			c0.018,0,0.035,0.005,0.053,0.005c0.253,0,0.499-0.033,0.697-0.101l8.5-2.949c0.498-0.172,0.908-0.748,0.908-1.275L43,30.355
 			C43,30.251,42.975,30.141,42.947,30.032z M40.588,32.018c0.723-0.268,1.315,0.223,1.322,1.098c0.008,0.877-0.57,1.805-1.293,2.074
 			c-0.721,0.268-1.314-0.225-1.32-1.102C39.289,33.213,39.867,32.283,40.588,32.018z M35.403,33.762
@@ -67,16 +79,18 @@
 			 M38.072,39.172c-0.72,0.27-1.312-0.223-1.321-1.102c-0.007-0.873,0.573-1.803,1.293-2.07c0.723-0.268,1.313,0.223,1.323,1.1
 			C39.374,37.975,38.795,38.904,38.072,39.172z M40.713,41.211c-0.721,0.271-1.312-0.223-1.32-1.102
 			c-0.008-0.873,0.572-1.805,1.293-2.07c0.723-0.268,1.314,0.223,1.322,1.1C42.016,40.018,41.436,40.941,40.713,41.211z"/>
-		<path d="M35.433,36.934c0.722-0.268,1.3-1.195,1.292-2.072c-0.006-0.877-0.599-1.367-1.321-1.1c-0.72,0.266-1.3,1.197-1.292,2.07
-			C34.119,36.711,34.711,37.205,35.433,36.934z"/>
-		<path d="M38.044,36c-0.72,0.268-1.3,1.197-1.293,2.07c0.009,0.879,0.602,1.371,1.321,1.102c0.723-0.268,1.302-1.197,1.295-2.072
-			C39.357,36.223,38.767,35.732,38.044,36z"/>
-		<path d="M40.617,35.189c0.723-0.27,1.301-1.197,1.293-2.074c-0.007-0.875-0.6-1.365-1.322-1.098
-			c-0.721,0.266-1.299,1.195-1.291,2.07C39.303,34.965,39.896,35.457,40.617,35.189z"/>
-		<path d="M40.686,38.039c-0.721,0.266-1.301,1.197-1.293,2.07c0.008,0.879,0.6,1.373,1.32,1.102
-			c0.723-0.27,1.303-1.193,1.295-2.072C42,38.262,41.408,37.771,40.686,38.039z"/>
-		<path d="M35.461,39.984c-0.722,0.268-1.301,1.199-1.293,2.07c0.008,0.879,0.6,1.371,1.321,1.102
-			c0.722-0.268,1.3-1.197,1.291-2.072C36.773,40.207,36.182,39.717,35.461,39.984z"/>
+		<g class="ColorScheme-Text" fill="currentColor">
+			<path d="M35.433,36.934c0.722-0.268,1.3-1.195,1.292-2.072c-0.006-0.877-0.599-1.367-1.321-1.1c-0.72,0.266-1.3,1.197-1.292,2.07
+				C34.119,36.711,34.711,37.205,35.433,36.934z"/>
+			<path d="M38.044,36c-0.72,0.268-1.3,1.197-1.293,2.07c0.009,0.879,0.602,1.371,1.321,1.102c0.723-0.268,1.302-1.197,1.295-2.072
+				C39.357,36.223,38.767,35.732,38.044,36z"/>
+			<path d="M40.617,35.189c0.723-0.27,1.301-1.197,1.293-2.074c-0.007-0.875-0.6-1.365-1.322-1.098
+				c-0.721,0.266-1.299,1.195-1.291,2.07C39.303,34.965,39.896,35.457,40.617,35.189z"/>
+			<path d="M40.686,38.039c-0.721,0.266-1.301,1.197-1.293,2.07c0.008,0.879,0.6,1.373,1.32,1.102
+				c0.723-0.27,1.303-1.193,1.295-2.072C42,38.262,41.408,37.771,40.686,38.039z"/>
+			<path d="M35.461,39.984c-0.722,0.268-1.301,1.199-1.293,2.07c0.008,0.879,0.6,1.371,1.321,1.102
+				c0.722-0.268,1.3-1.197,1.291-2.072C36.773,40.207,36.182,39.717,35.461,39.984z"/>
+		</g>
 	</g>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/DataSets.svg b/Orange/widgets/data/icons/DataSets.svg
index 508d456cf98..e82520c472b 100644
--- a/Orange/widgets/data/icons/DataSets.svg
+++ b/Orange/widgets/data/icons/DataSets.svg
@@ -3,36 +3,17 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<g>
-	<g>
-		<path fill="#FFFFFF" d="M-45.394,8.692h-10.288v27.433h18.86V16.408c0-3.535-6.858-0.857-6.858-0.857
-			C-42.823,12.122-43.68,8.692-45.394,8.692z"/>
-		<path fill="#333333" d="M-42.823,6.978h-12.859h-1.714v1.714v27.433v1.715h1.714h18.86h1.714v-1.715V15.551v-1.714L-42.823,6.978z
-			 M-36.821,36.125h-18.86V8.692h10.288c1.714,0,2.571,3.429,1.714,6.858c0,0,6.858-2.677,6.858,0.857V36.125z"/>
-	</g>
-	<g>
-		<path fill="#FFFFFF" d="M-39.394,12.122h-10.287v27.433h18.86V19.837c0-3.535-6.858-0.857-6.858-0.857
-			C-36.821,15.551-37.679,12.122-39.394,12.122z"/>
-		<path fill="#333333" d="M-36.821,10.407h-12.859h-1.714v1.714v27.433v1.714h1.714h18.86h1.714v-1.714V18.98v-1.714L-36.821,10.407
-			z M-30.82,39.555h-18.86V12.122h10.287c1.715,0,2.572,3.429,1.715,6.858c0,0,6.858-2.677,6.858,0.857V39.555z"/>
-	</g>
-	<g>
-		<path fill="#FFFFFF" d="M-32.892,15.836h-10.286v27.433h18.858V23.551c0-3.535-6.858-0.857-6.858-0.857
-			C-30.32,19.265-31.178,15.836-32.892,15.836z"/>
-		<path fill="#333333" d="M-30.32,14.121h-12.857h-1.715v1.715v27.433v1.714h1.715h18.858h1.715v-1.714V22.694v-1.715L-30.32,14.121
-			z M-24.319,43.269h-18.858V15.836h10.286c1.714,0,2.571,3.429,1.714,6.858c0,0,6.858-2.678,6.858,0.857V43.269z"/>
-	</g>
-</g>
-<g>
-	<path fill="#FFFFFF" d="M24.999,8.001H13.001V40h21.998V17.001c0-4.123-8-1-8-1C27.999,12.001,26.999,8.001,24.999,8.001z"/>
-	<path fill="#333333" d="M27.999,6.001H13.001h-2v2V40v2h2h21.998h2v-2V16.001v-2L27.999,6.001z M34.999,40H13.001V8.001h11.998
-		c2,0,3,4,2,8c0,0,8-3.123,8,1V40z"/>
-</g>
-<polyline fill="none" stroke="#333333" stroke-width="2" stroke-miterlimit="10" points="17,29.088 17,35 31,35 31,29.088 "/>
-<g>
-	<g>
-		<polygon fill="#333333" points="22.402,18.84 22.396,25.174 19.565,25.171 23.992,31.47 28.436,25.181 25.603,25.178 
-			25.612,18.844 		"/>
-	</g>
-</g>
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<path class="ColorScheme-Background" fill="currentColor" d="M24.999,8.001H13.001V40h21.998V17.001c0-4.123-8-1-8-1C27.999,12.001,26.999,8.001,24.999,8.001z"/>
+<path class="ColorScheme-Text" fill="currentColor" d="M27.999,6.001H13.001h-2v2V40v2h2h21.998h2v-2V16.001v-2L27.999,6.001z M34.999,40H13.001V8.001h11.998
+	c2,0,3,4,2,8c0,0,8-3.123,8,1V40z"/>
+<polyline class="ColorScheme-Text" fill="none" stroke="currentColor" stroke-width="2" stroke-miterlimit="10" points="17,29.088 17,35 31,35 31,29.088 "/>
+<polygon class="ColorScheme-Text" fill="currentColor" points="22.402,18.84 22.396,25.174 19.565,25.171 23.992,31.47 28.436,25.181 25.603,25.178
+	25.612,18.844 		"/>
 </svg>
diff --git a/Orange/widgets/data/icons/Discretize.svg b/Orange/widgets/data/icons/Discretize.svg
index 8aa37b6f606..632549103e3 100644
--- a/Orange/widgets/data/icons/Discretize.svg
+++ b/Orange/widgets/data/icons/Discretize.svg
@@ -3,11 +3,21 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<g>
-	<rect x="17" y="9" fill="#666666" width="2" height="30"/>
-	<rect x="28" y="9" fill="#666666" width="2" height="30"/>
-	<polygon fill="#333333" points="13,22 13,24 9,24 9,25 2,25 2,31 9,31 13,31 16,31 16,22 	"/>
-	<rect x="20" y="17" fill="#333333" width="7" height="14"/>
-	<polygon fill="#333333" points="39,23 39,24 37,24 37,23 34,23 34,20 31,20 31,31 34,31 37,31 39,31 46,31 46,23 	"/>
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Disabled-Text { color: #666; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Disabled-Text" fill="currentColor">
+	<rect x="17" y="9" width="2" height="30"/>
+	<rect x="28" y="9" width="2" height="30"/>
+</g>
+<g class="ColorScheme-Text" fill="currentColor">
+	<polygon points="13,22 13,24 9,24 9,25 2,25 2,31 9,31 13,31 16,31 16,22 	"/>
+	<rect x="20" y="17" width="7" height="14"/>
+	<polygon points="39,23 39,24 37,24 37,23 34,23 34,20 31,20 31,31 34,31 37,31 39,31 46,31 46,23 	"/>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/EditDomain.svg b/Orange/widgets/data/icons/EditDomain.svg
index 4edf444a8ac..1b2601ce7eb 100644
--- a/Orange/widgets/data/icons/EditDomain.svg
+++ b/Orange/widgets/data/icons/EditDomain.svg
@@ -1,29 +1,38 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Generator: Adobe Illustrator 16.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <g>
-	<g>
-		<path fill="#333333" d="M17.965,32.468c0.787,0.051,1.852,0.203,2.512,0.355c0.178,0.559,0.229,1.802,0.127,2.336h-9.266
-			c0.051-0.635,0.381-1.753,0.609-2.26c0.482-0.152,1.523-0.355,2.107-0.432V19.546h-2.818c-0.051,0.533-0.203,1.549-0.33,2.056
-			c-0.914,0.305-2.082,0.355-2.945,0.355v-4.798h16.121v4.874c-0.965,0-2.107-0.101-2.971-0.354
-			c-0.152-0.56-0.303-1.523-0.354-2.133h-2.793V32.468z"/>
-	</g>
+	<path class="ColorScheme-Text" fill="currentColor" d="M17.965,32.468c0.787,0.051,1.852,0.203,2.512,0.355c0.178,0.559,0.229,1.802,0.127,2.336h-9.266
+		c0.051-0.635,0.381-1.753,0.609-2.26c0.482-0.152,1.523-0.355,2.107-0.432V19.546h-2.818c-0.051,0.533-0.203,1.549-0.33,2.056
+		c-0.914,0.305-2.082,0.355-2.945,0.355v-4.798h16.121v4.874c-0.965,0-2.107-0.101-2.971-0.354
+		c-0.152-0.56-0.303-1.523-0.354-2.133h-2.793V32.468z"/>
 	<g>
 		<g>
-			<g>
-				<path fill="#666666" d="M25.889,26.774c0.094,0.324,0.242,0.639,0.422,0.941c0.354,0.603,0.855,1.158,1.512,1.586
-					c0.654,0.428,1.361,0.666,2.057,0.75c0.352,0.042,0.697,0.051,1.031,0.009l6.682-10.211c-0.98-0.069-1.998-0.399-2.926-1.007
-					c-0.93-0.608-1.637-1.409-2.094-2.279L25.889,26.774z"/>
-			</g>
+			<path class="ColorScheme-Text" fill="currentColor" d="M25.889,26.774c0.094,0.324,0.242,0.639,0.422,0.941c0.354,0.603,0.855,1.158,1.512,1.586
+				c0.654,0.428,1.361,0.666,2.057,0.75c0.352,0.042,0.697,0.051,1.031,0.009l6.682-10.211c-0.98-0.069-1.998-0.399-2.926-1.007
+				c-0.93-0.608-1.637-1.409-2.094-2.279L25.889,26.774z"/>
+			<path class="ColorScheme-Background" fill="currentColor" opacity="0.4" d="M25.889,26.774c0.094,0.324,0.242,0.639,0.422,0.941c0.354,0.603,0.855,1.158,1.512,1.586
+				c0.654,0.428,1.361,0.666,2.057,0.75c0.352,0.042,0.697,0.051,1.031,0.009l6.682-10.211c-0.98-0.069-1.998-0.399-2.926-1.007
+				c-0.93-0.608-1.637-1.409-2.094-2.279L25.889,26.774z"/>
 		</g>
 		<g>
-			<path fill="#666666" d="M35.613,17.413c0.984,0.644,2.096,0.884,3.09,0.758l1.336-2.045l-5.02-3.285l-1.338,2.044
+			<path class="ColorScheme-Text" fill="currentColor" d="M35.613,17.413c0.984,0.644,2.096,0.884,3.09,0.758l1.336-2.045l-5.02-3.285l-1.338,2.044
+				C33.963,15.847,34.629,16.768,35.613,17.413z"/>
+			<path class="ColorScheme-Background" fill="currentColor" opacity="0.4" d="M35.613,17.413c0.984,0.644,2.096,0.884,3.09,0.758l1.336-2.045l-5.02-3.285l-1.338,2.044
 				C33.963,15.847,34.629,16.768,35.613,17.413z"/>
 		</g>
 		<g>
-			<path fill="#666666" d="M24.762,28.497l-0.773,6.662l5.795-3.378c-0.846-0.124-2.262-0.286-3.057-0.806
+			<path class="ColorScheme-Text" fill="currentColor" d="M24.762,28.497l-0.773,6.662l5.795-3.378c-0.846-0.124-2.262-0.286-3.057-0.806
+				C25.932,30.454,25.215,29.222,24.762,28.497z"/>
+			<path class="ColorScheme-Background" fill="currentColor" opacity="0.4" d="M24.762,28.497l-0.773,6.662l5.795-3.378c-0.846-0.124-2.262-0.286-3.057-0.806
 				C25.932,30.454,25.215,29.222,24.762,28.497z"/>
 		</g>
 	</g>
diff --git a/Orange/widgets/data/icons/FeatureConstructor.svg b/Orange/widgets/data/icons/FeatureConstructor.svg
index a271576314b..a47f3fd9e54 100644
--- a/Orange/widgets/data/icons/FeatureConstructor.svg
+++ b/Orange/widgets/data/icons/FeatureConstructor.svg
@@ -3,30 +3,43 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <g>
-	<path fill="#333333" d="M6,6v36h36V6H6z M40,14v8v1v8v1v8H30h-1H19h-1H8v-8v-1v-8v-1v-8v0h10l0,0h1l0,0h10l0,0h1l0,0L40,14L40,14z"
-		/>
-	<polygon fill="#666666" points="30,14 29,14 29,22 29,23 29,31 29,32 29,40 30,40 30,32 40,32 40,31 30,31 30,23 40,23 40,22 
-		30,22 	"/>
-	<polygon fill="#666666" points="19,31 19,23 19,22 19,14 18,14 18,22 8,22 8,23 18,23 18,31 8,31 8,32 18,32 18,40 19,40 19,32 	
-		"/>
-	<rect x="8" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="8" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="8" y="14" fill="#FFFFFF" width="10" height="0"/>
-	<rect x="8" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="32" fill="#B2B2B2" width="10" height="8"/>
-	<rect x="19" y="23" fill="#B2B2B2" width="10" height="8"/>
-	<rect x="19" y="14" fill="#B2B2B2" width="10" height="0"/>
-	<rect x="19" y="14" fill="#B2B2B2" width="10" height="8"/>
-	<rect x="30" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="30" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="30" y="14" fill="#FFFFFF" width="10" height="0"/>
-	<rect x="30" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="22" fill="#989898" width="10" height="1"/>
-	<rect x="19" y="31" fill="#989898" width="10" height="1"/>
+	<g class="ColorScheme-Text" fill="currentColor">
+	<path d="M6,6v36h36V6H6z M40,22L40,22v1l0,0v8l0,0v1l0,0v8l0,0H30h-1H19h-1H8l0,0V14l0,0h10h1h10h1h10l0,0V22z"/>
+	<path d="M30,14h-1v8H19v-8h-1v8H8v-8l0,0v26l0,0v-8h10v8h1v-8h10v8h1v-8h10v-1H30v-8h10v-1H30V14z M18,31H8v-8h10
+		V31z M29,31H19v-8h10V31z"/>
 </g>
-<g>
-	<path fill="#333333" d="M24.811,24.011l-1.865,8.749c-0.332,1.568-1.029,2.85-2.096,3.844c-1.062,0.996-2.16,1.494-3.289,1.494
+<g class="ColorScheme-Background" fill="currentColor">
+	<rect x="8" y="32" width="10" height="8"/>
+	<rect x="8" y="23" width="10" height="8"/>
+	<rect x="8" y="14" width="10" height="8"/>
+	<rect x="19" y="32" width="10" height="8"/>
+	<rect x="19" y="23" width="10" height="8"/>
+	<rect x="19" y="14" width="10" height="8"/>
+	<rect x="30" y="32" width="10" height="8"/>
+	<rect x="30" y="23" width="10" height="8"/>
+	<rect x="30" y="14" width="10" height="8"/>
+</g>
+<g class="ColorScheme-Background" fill="currentColor" opacity="0.5">
+	<rect x="19" y="22" width="10" height="1"/>
+	<rect x="19" y="31" width="10" height="1"/>
+	<rect x="19" y="14" width="10" height="1"/>
+</g>
+<g class="ColorScheme-Text" fill="currentColor">
+	<rect x="19" y="14" opacity="0.5" width="10" height="9"/>
+	<rect x="19" y="23" opacity="0.5" width="10" height="9"/>
+	<rect x="19" y="32" opacity="0.5" width="10" height="9"/>
+</g>
+</g>
+<g class="ColorScheme-Text" fill="currentColor">
+	<path d="M24.811,24.011l-1.865,8.749c-0.332,1.568-1.029,2.85-2.096,3.844c-1.062,0.996-2.16,1.494-3.289,1.494
 		c-0.619,0-1.076-0.119-1.369-0.355s-0.439-0.535-0.439-0.895c0-0.305,0.092-0.572,0.275-0.805c0.186-0.232,0.449-0.35,0.795-0.35
 		c0.221,0,0.412,0.049,0.578,0.148c0.166,0.098,0.311,0.223,0.438,0.371c0.1,0.119,0.211,0.281,0.334,0.486
 		c0.125,0.205,0.232,0.381,0.324,0.529c0.543-0.041,1.008-0.408,1.393-1.102c0.385-0.691,0.719-1.68,1-2.965l1.953-9.151h-2.07
@@ -36,7 +49,7 @@
 		c-0.221,0-0.41-0.047-0.574-0.143c-0.164-0.095-0.309-0.221-0.438-0.376c-0.141-0.175-0.254-0.343-0.338-0.498
 		c-0.086-0.154-0.191-0.328-0.32-0.519c-0.488,0.021-0.92,0.342-1.297,0.962c-0.375,0.619-0.711,1.652-1.012,3.097l-0.238,1.12
 		h2.674l-0.223,0.964H24.811z"/>
-	<path fill="#333333" d="M26.865,33.395l2.463-3.654l-2.357-3.547h2.311l1.205,2.09l1.178-2.09h2.242l-2.369,3.514L34,33.395h-2.35
+	<path d="M26.865,33.395l2.463-3.654l-2.357-3.547h2.311l1.205,2.09l1.178-2.09h2.242l-2.369,3.514L34,33.395h-2.35
 		l-1.24-2.17l-1.256,2.17H26.865z"/>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/FeatureStatistics.svg b/Orange/widgets/data/icons/FeatureStatistics.svg
index c624ace31a8..0b60b8e9e8a 100644
--- a/Orange/widgets/data/icons/FeatureStatistics.svg
+++ b/Orange/widgets/data/icons/FeatureStatistics.svg
@@ -1,18 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Generator: Adobe Illustrator 16.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<g>
-	<g id="zXDtGm_2_">
-	</g>
-	<rect x="6.734" y="4.522" fill="#666666" width="7.145" height="19.052"/>
-	<rect x="15.863" y="12.715" fill="#666666" width="7.145" height="10.859"/>
-	<rect x="24.992" y="18.925" fill="#666666" width="7.145" height="4.649"/>
-	<rect x="34.121" y="12.715" fill="#666666" width="7.145" height="10.859"/>
-	<rect x="6.734" y="38.828" fill="#666666" width="7.145" height="4.648"/>
-	<rect x="15.863" y="34.547" fill="#666666" width="7.145" height="8.932"/>
-	<rect x="24.992" y="30.352" fill="#666666" width="7.145" height="13.127"/>
-	<rect x="34.121" y="27.424" fill="#666666" width="7.145" height="16.055"/>
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Text" fill="currentColor">
+	<rect x="6.734" y="4.522" width="7.145" height="19.052"/>
+	<rect x="15.863" y="12.715" width="7.145" height="10.859"/>
+	<rect x="24.992" y="18.925" width="7.145" height="4.649"/>
+	<rect x="34.121" y="12.715" width="7.145" height="10.859"/>
+	<rect x="6.734" y="38.828" width="7.145" height="4.648"/>
+	<rect x="15.863" y="34.547" width="7.145" height="8.932"/>
+	<rect x="24.992" y="30.352" width="7.145" height="13.127"/>
+	<rect x="34.121" y="27.424" width="7.145" height="16.055"/>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/File.svg b/Orange/widgets/data/icons/File.svg
index 617d2324b02..9da12ac9596 100644
--- a/Orange/widgets/data/icons/File.svg
+++ b/Orange/widgets/data/icons/File.svg
@@ -3,6 +3,13 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<path fill="#FFFFFF" d="M25,8H13v32h22V17c0-4.123-8-1-8-1C28,12,27,8,25,8z"/>
-<path fill="#333333" d="M28,6H13h-2v2v32v2h2h22h2v-2V16v-2L28,6z M35,40H13V8h12c2,0,3,4,2,8c0,0,8-3.123,8,1V40z"/>
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<path class="ColorScheme-Background" fill="currentColor" d="M25,8H13v32h22V17c0-4.123-8-1-8-1C28,12,27,8,25,8z"/>
+<path class="ColorScheme-Text" fill="currentColor" d="M28,6H13h-2v2v32v2h2h22h2v-2V16v-2L28,6z M35,40H13V8h12c2,0,3,4,2,8c0,0,8-3.123,8,1V40z"/>
 </svg>
diff --git a/Orange/widgets/data/icons/GroupBy.svg b/Orange/widgets/data/icons/GroupBy.svg
index c048e2f7d28..160a310ce39 100644
--- a/Orange/widgets/data/icons/GroupBy.svg
+++ b/Orange/widgets/data/icons/GroupBy.svg
@@ -1 +1,25 @@
-<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48"><defs><style>.cls-1{fill:#666;}.cls-2{fill:#333;}</style></defs><path class="cls-1" d="M8.82,3.17A5.24,5.24,0,1,0,14,8.48,5.25,5.25,0,0,0,8.82,3.17Z"/><path class="cls-1" d="M24.08,3.17a5.24,5.24,0,1,0,5.16,5.31A5.25,5.25,0,0,0,24.08,3.17Z"/><path class="cls-1" d="M39.34,3.17A5.24,5.24,0,1,0,44.5,8.48,5.25,5.25,0,0,0,39.34,3.17Z"/><rect class="cls-1" x="3.5" y="16.91" width="41" height="2"/><rect class="cls-1" x="23" y="17.91" width="2" height="6.24"/><polygon class="cls-1" points="28.44 20.78 24 22.67 19.56 20.78 24 31.31 28.44 20.78"/><path class="cls-2" d="M8.82,34.36A5.24,5.24,0,1,0,14,39.67,5.25,5.25,0,0,0,8.82,34.36Z"/><path class="cls-2" d="M24.08,34.36a5.24,5.24,0,1,0,5.16,5.31A5.25,5.25,0,0,0,24.08,34.36Z"/><path class="cls-1" d="M39.34,34.36a5.24,5.24,0,1,0,5.16,5.31A5.25,5.25,0,0,0,39.34,34.36Z"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+<style>.cls-1{fill:#666;}.cls-2{fill:#333;}</style></defs>
+<path class="ColorScheme-Text" fill="currentColor" d="M8.82,3.17A5.24,5.24,0,1,0,14,8.48,5.25,5.25,0,0,0,8.82,3.17Z"/>
+<path class="ColorScheme-Background" fill="currentColor" opacity="0.5" d="M8.82,3.17A5.24,5.24,0,1,0,14,8.48,5.25,5.25,0,0,0,8.82,3.17Z"/>
+<path class="ColorScheme-Text" fill="currentColor" d="M24.08,3.17a5.24,5.24,0,1,0,5.16,5.31A5.25,5.25,0,0,0,24.08,3.17Z"/>
+<path class="ColorScheme-Background" fill="currentColor" opacity="0.5" d="M24.08,3.17a5.24,5.24,0,1,0,5.16,5.31A5.25,5.25,0,0,0,24.08,3.17Z"/>
+<path class="ColorScheme-Text" fill="currentColor" d="M39.34,3.17A5.24,5.24,0,1,0,44.5,8.48,5.25,5.25,0,0,0,39.34,3.17Z"/>
+<path class="ColorScheme-Background" fill="currentColor" opacity="0.5" d="M39.34,3.17A5.24,5.24,0,1,0,44.5,8.48,5.25,5.25,0,0,0,39.34,3.17Z"/>
+<rect class="ColorScheme-Text" fill="currentColor" x="3.5" y="16.91" width="41" height="2"/>
+<rect class="ColorScheme-Background" fill="currentColor" opacity="0.5" x="3.5" y="16.91" width="41" height="2"/>
+<rect class="ColorScheme-Text" fill="currentColor" x="23" y="17.91" width="2" height="6.24"/>
+<rect class="ColorScheme-Background" fill="currentColor" opacity="0.5" x="23" y="17.91" width="2" height="6.24"/>
+<polygon class="ColorScheme-Text" fill="currentColor" points="28.44 20.78 24 22.67 19.56 20.78 24 31.31 28.44 20.78"/>
+<polygon class="ColorScheme-Background" fill="currentColor" opacity="0.5" points="28.44 20.78 24 22.67 19.56 20.78 24 31.31 28.44 20.78"/>
+<path class="ColorScheme-Text" fill="currentColor" d="M8.82,34.36A5.24,5.24,0,1,0,14,39.67,5.25,5.25,0,0,0,8.82,34.36Z"/>
+<path class="ColorScheme-Text" fill="currentColor" d="M24.08,34.36a5.24,5.24,0,1,0,5.16,5.31A5.25,5.25,0,0,0,24.08,34.36Z"/>
+<path class="ColorScheme-Text" fill="currentColor" d="M39.34,34.36a5.24,5.24,0,1,0,5.16,5.31A5.25,5.25,0,0,0,39.34,34.36Z"/>
+<path class="ColorScheme-Background" fill="currentColor" opacity="0.5" d="M39.34,34.36a5.24,5.24,0,1,0,5.16,5.31A5.25,5.25,0,0,0,39.34,34.36Z"/>
+</svg>
diff --git a/Orange/widgets/data/icons/Impute.svg b/Orange/widgets/data/icons/Impute.svg
index ebfde00446e..8b2f9ddc4e0 100644
--- a/Orange/widgets/data/icons/Impute.svg
+++ b/Orange/widgets/data/icons/Impute.svg
@@ -3,21 +3,34 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <g>
-	<path fill="#333333" d="M6,6v36h36V6H6z M40,18v1v10v1v10H30h-1H19h-1H8V30v-1V19v-1V8h10h1h10h1h10V18z"/>
-	<rect x="32" y="21" fill="#666666" width="6" height="6"/>
-	<rect x="10" y="10" fill="#666666" width="6" height="6"/>
-	<rect x="21" y="32" fill="#666666" width="6" height="6"/>
-	<path fill="#666666" d="M30,8h-1v10H19V8h-1v10H8v1h10v10H8v1h10v10h1V30h10v10h1V30h10v-1H30V19h10v-1H30V8z M29,29H19V19h10V29z"
-		/>
-	<rect x="19" y="8" fill="#FFFFFF" width="10" height="10"/>
-	<path fill="#B2B2B2" d="M19,30v10h10V30H19z M27,38h-6v-6h6V38z"/>
-	<path fill="#B2B2B2" d="M30,29h10V19H30V29z M32,21h6v6h-6V21z"/>
-	<path fill="#B2B2B2" d="M18,8H8v10h10V8z M16,16h-6v-6h6V16z"/>
-	<rect x="30" y="8" fill="#FFFFFF" width="10" height="10"/>
-	<rect x="8" y="19" fill="#FFFFFF" width="10" height="10"/>
-	<rect x="19" y="19" fill="#FFFFFF" width="10" height="10"/>
-	<rect x="8" y="30" fill="#FFFFFF" width="10" height="10"/>
-	<rect x="30" y="30" fill="#FFFFFF" width="10" height="10"/>
+	<rect class="ColorScheme-Text" fill="currentColor" x="7" y="7" width="34" height="34"/>
+	<g class="ColorScheme-Background" fill="currentColor">
+		<rect x="30" y="8" width="10" height="10"/>
+		<rect x="8" y="19" width="10" height="10"/>
+		<rect x="19" y="19" width="10" height="10"/>
+		<rect x="8" y="30" width="10" height="10"/>
+		<rect x="30" y="30" width="10" height="10"/>
+		<rect x="19" y="8" width="10" height="10"/>
+		<rect x="30" y="19" width="10" height="10"/>
+		<rect x="8" y="8" width="10" height="10"/>
+		<rect x="19" y="30" width="10" height="10"/>
+	</g>
+	<g class="ColorScheme-Text" fill="currentColor">
+		<rect x="30" y="19" opacity="0.4" width="10" height="10"/>
+		<rect x="8" y="8" opacity="0.4" width="10" height="10"/>
+		<rect x="19" y="30" opacity="0.4" width="10" height="10"/>
+
+		<rect x="32" y="21" opacity="0.7" width="6" height="6"/>
+		<rect x="10" y="10" opacity="0.7" width="6" height="6"/>
+		<rect x="21" y="32" opacity="0.7" width="6" height="6"/>
+	</g>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/Melt.svg b/Orange/widgets/data/icons/Melt.svg
index f445d7c0f36..488b56b82ef 100644
--- a/Orange/widgets/data/icons/Melt.svg
+++ b/Orange/widgets/data/icons/Melt.svg
@@ -3,25 +3,22 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<polygon fill="#FFFFFF" stroke="#FFFFFF" stroke-miterlimit="10" points="103.667,6.024 103.667,39.837 127.792,39.837 
-	127.792,13.837 119.167,6.024 "/>
-<g id="zXDtGm_1_">
-</g>
-<path fill="#707070" d="M119.667,4.594h-15h-2v2v32v2h2h22h2v-2v-24v-2L119.667,4.594z M126.667,38.595h-22v-32h12c2,0,3,4,2,8
-	c0,0,8-3.123,8,1V38.595z"/>
-<circle fill="#333333" cx="115.106" cy="22.129" r="4.611"/>
-<circle fill="#333333" cx="120.203" cy="34.056" r="3.745"/>
-<circle fill="#333333" cx="128.388" cy="27.399" r="3.744"/>
-<circle fill="#333333" cx="103.948" cy="28.739" r="3.744"/>
-<polyline fill="none" stroke="#333333" stroke-miterlimit="10" points="102.948,29.739 115.106,22.129 120.202,34.056 "/>
-<line fill="none" stroke="#333333" stroke-miterlimit="10" x1="128.388" y1="27.399" x2="115.106" y2="22.129"/>
-<polyline fill="none" stroke="#333333" stroke-width="2" stroke-miterlimit="10" points="3.562,9.523 9.191,9.523 17.59,33.124 
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Text" stroke="currentColor">
+<polyline fill="none" stroke-width="2" stroke-miterlimit="10" points="3.562,9.523 9.191,9.523 17.59,33.124
 	35.013,33.124 "/>
-<ellipse fill="none" stroke="#333333" stroke-width="2.2" stroke-miterlimit="10" cx="34.428" cy="35.831" rx="2.472" ry="2.645"/>
-<ellipse fill="none" stroke="#333333" stroke-width="2.2" stroke-miterlimit="10" cx="18.147" cy="35.831" rx="2.472" ry="2.645"/>
-<polyline fill="none" stroke="#333333" stroke-width="2" stroke-miterlimit="10" points="10.981,14.555 39.837,14.555 
+<ellipse fill="none" stroke-width="2.2" stroke-miterlimit="10" cx="34.428" cy="35.831" rx="2.472" ry="2.645"/>
+<ellipse fill="none" stroke-width="2.2" stroke-miterlimit="10" cx="18.147" cy="35.831" rx="2.472" ry="2.645"/>
+<polyline fill="none" stroke-width="2" stroke-miterlimit="10" points="10.981,14.555 39.837,14.555
 	36.085,28.085 15.676,28.085 "/>
-<line fill="none" stroke="#333333" stroke-miterlimit="10" x1="13.55" y1="21.774" x2="37.835" y2="21.774"/>
-<line fill="none" stroke="#333333" stroke-miterlimit="10" x1="21.253" y1="14.555" x2="21.924" y2="27.29"/>
-<line fill="none" stroke="#333333" stroke-miterlimit="10" x1="29.831" y1="14.976" x2="28.937" y2="27.29"/>
+<line fill="none" stroke-miterlimit="10" x1="13.55" y1="21.774" x2="37.835" y2="21.774"/>
+<line fill="none" stroke-miterlimit="10" x1="21.253" y1="14.555" x2="21.924" y2="27.29"/>
+<line fill="none" stroke-miterlimit="10" x1="29.831" y1="14.976" x2="28.937" y2="27.29"/>
+</g>
 </svg>
diff --git a/Orange/widgets/data/icons/MergeData.svg b/Orange/widgets/data/icons/MergeData.svg
index 47bf80facce..7219277b23a 100644
--- a/Orange/widgets/data/icons/MergeData.svg
+++ b/Orange/widgets/data/icons/MergeData.svg
@@ -2,27 +2,38 @@
 <!-- Generator: Adobe Illustrator 22.0.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 viewBox="33.5 271.5 48 48" enable-background="new 33.5 271.5 48 48" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <g>
-	<path fill="#333333" d="M56.184,292.868v-5.265h-2.632H35.124v27.641h18.427h2.632v-6.581h-2.632v-5.265h2.632v-5.265h-2.632
+	<path class="ColorScheme-Text" fill="currentColor" d="M56.184,292.868v-5.265h-2.632H35.124v27.641h18.427h2.632v-6.581h-2.632v-5.265h2.632v-5.265h-2.632
 		v-5.265H56.184z M52.235,290.235v10.53v1.316v10.53h-6.581h-1.316h-6.581v-10.53v-1.316v-10.53l0,0h6.581h1.316H52.235
 		L52.235,290.235z"/>
-	<polygon fill="#666666" points="45.654,290.235 44.338,290.235 44.338,300.765 37.757,300.765 37.757,302.081 44.338,302.081 
+	<polygon class="ColorScheme-Text" fill="currentColor" points="45.654,290.235 44.338,290.235 44.338,300.765 37.757,300.765 37.757,302.081 44.338,302.081
 		44.338,312.611 45.654,312.611 45.654,302.081 52.235,302.081 52.235,300.765 45.654,300.765 	"/>
-	<rect x="45.654" y="302.081" fill="#FFFFFF" width="6.581" height="10.53"/>
-	<rect x="37.757" y="302.081" fill="#FFFFFF" width="6.581" height="10.53"/>
-	<rect x="45.654" y="290.235" fill="#FFFFFF" width="6.581" height="10.53"/>
-	<rect x="37.757" y="290.235" fill="#FFFFFF" width="6.581" height="10.53"/>
-	<path fill="#333333" d="M61.449,275.757h-1.316v11.846h1.316v5.265h-2.632v5.265h2.632v5.265h-2.632v5.265h2.632v6.581h18.427
+	<g  class="ColorScheme-Background" fill="currentColor">
+	<rect x="45.654" y="302.081" width="6.581" height="10.53"/>
+	<rect x="37.757" y="302.081" width="6.581" height="10.53"/>
+	<rect x="45.654" y="290.235" width="6.581" height="10.53"/>
+	<rect x="37.757" y="290.235" width="6.581" height="10.53"/>
+	</g>
+	<path class="ColorScheme-Text" fill="currentColor" d="M61.449,275.757h-1.316v11.846h1.316v5.265h-2.632v5.265h2.632v5.265h-2.632v5.265h2.632v6.581h18.427
 		v-39.487H61.449z M77.243,278.389v10.53v1.316v10.53v1.316v10.53h-6.581h-1.316h-6.581v-10.53v-1.316v-10.53v-1.316v-10.53l0,0
 		h6.581l0,0h1.316l0,0H77.243L77.243,278.389z"/>
-	<polygon fill="#666666" points="70.662,278.389 69.346,278.389 69.346,288.919 62.765,288.919 62.765,290.235 69.346,290.235 
-		69.346,300.765 62.765,300.765 62.765,302.081 69.346,302.081 69.346,312.611 70.662,312.611 70.662,302.081 77.243,302.081 
+	<polygon class="ColorScheme-Text" fill="currentColor" points="70.662,278.389 69.346,278.389 69.346,288.919 62.765,288.919 62.765,290.235 69.346,290.235
+		69.346,300.765 62.765,300.765 62.765,302.081 69.346,302.081 69.346,312.611 70.662,312.611 70.662,302.081 77.243,302.081
 		77.243,300.765 70.662,300.765 70.662,290.235 77.243,290.235 77.243,288.919 70.662,288.919 	"/>
-	<rect x="70.662" y="302.081" fill="#FFFFFF" width="6.581" height="10.53"/>
-	<rect x="62.765" y="302.081" fill="#FFFFFF" width="6.581" height="10.53"/>
-	<rect x="70.662" y="290.235" fill="#FFFFFF" width="6.581" height="10.53"/>
-	<rect x="62.765" y="290.235" fill="#FFFFFF" width="6.581" height="10.53"/>
-	<rect x="70.662" y="278.389" fill="#FFFFFF" width="6.581" height="10.53"/>
-	<rect x="62.765" y="278.389" fill="#FFFFFF" width="6.581" height="10.53"/>
+	<g  class="ColorScheme-Background" fill="currentColor">
+	<rect x="70.662" y="302.081" width="6.581" height="10.53"/>
+	<rect x="62.765" y="302.081" width="6.581" height="10.53"/>
+	<rect x="70.662" y="290.235" width="6.581" height="10.53"/>
+	<rect x="62.765" y="290.235" width="6.581" height="10.53"/>
+	<rect x="70.662" y="278.389" width="6.581" height="10.53"/>
+	<rect x="62.765" y="278.389" width="6.581" height="10.53"/>
+	</g>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/PaintData.svg b/Orange/widgets/data/icons/PaintData.svg
index d55e4f3ec31..1b26dfdde18 100644
--- a/Orange/widgets/data/icons/PaintData.svg
+++ b/Orange/widgets/data/icons/PaintData.svg
@@ -1,36 +1,44 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Generator: Adobe Illustrator 16.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<g>
-	<path fill="#333333" d="M6,6v36h36V6H6z M40,14v8v1v8v1v8H30h-1H19h-1H8v-8v-1v-8v-1v-8v0h10l0,0h1l0,0h10l0,0h1l0,0L40,14L40,14z"
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Text" style="fill:currentColor">
+	<path d="M6,6v36h36V6H6z M40,14v8v1v8v1v8H30h-1H19h-1H8v-8v-1v-8v-1v-8v0h10l0,0h1l0,0h10l0,0h1l0,0L40,14L40,14z"
 		/>
-	<path fill="#666666" d="M30,14h-1v8H19v-8h-1v8H8v1h10h1v8h-1H8v1h10v8h1v-8h10v8h1v-8h10v-1H30v-8h10v-1H30V14z M30,31h-1H19v-8
+	<path d="M30,14h-1v8H19v-8h-1v8H8v1h10h1v8h-1H8v1h10v8h1v-8h10v8h1v-8h10v-1H30v-8h10v-1H30V14z M30,31h-1H19v-8
 		h10h1V31z"/>
-	<rect x="8" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="8" y="23" fill="#B2B2B2" width="10" height="8"/>
-	<rect x="8" y="14" fill="#FFFFFF" width="10" height="0"/>
-	<rect x="8" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="23" fill="#B2B2B2" width="10" height="8"/>
-	<rect x="19" y="14" fill="#FFFFFF" width="10" height="0"/>
-	<rect x="19" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="30" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="30" y="23" fill="#B2B2B2" width="10" height="8"/>
-	<rect x="30" y="14" fill="#FFFFFF" width="10" height="0"/>
-	<rect x="30" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="18" y="23" fill="#989898" width="1" height="8"/>
-	<rect x="29" y="23" fill="#989898" width="1" height="8"/>
+</g>
+<g class="ColorScheme-Background" style="fill:currentColor">
+	<rect x="8" y="32" width="10" height="8"/>
+	<rect x="8" y="23" width="10" height="8"/>
+<!--	<rect x="8" y="14" fill="#FFFFFF" width="10" height="0"/>-->
+	<rect x="8" y="14" width="10" height="8"/>
+	<rect x="19" y="32" width="10" height="8"/>
+	<rect x="19" y="23" width="10" height="8"/>
+<!--	<rect x="19" y="14" fill="#FFFFFF" width="10" height="0"/>-->
+	<rect x="19" y="14" width="10" height="8"/>
+	<rect x="30" y="32"  width="10" height="8"/>
+	<rect x="30" y="23" width="10" height="8"/>
+<!--	<rect x="30" y="14" fill="#FFFFFF" width="10" height="0"/>-->
+	<rect x="30" y="14" width="10" height="8"/>
+</g>
+<g class="ColorScheme-Text" style="fill:currentColor">
+	<rect  x="8" y="23" opacity="0.4" width="32" height="8"/>
 </g>
 <g>
-	
-		<rect x="34.258" y="17.069" transform="matrix(-0.8986 -0.4387 0.4387 -0.8986 57.8587 64.4621)" fill="#333333" width="4.238" height="16.954"/>
-	<path fill="#333333" d="M29.48,34.842c-0.059-0.004-0.118-0.004-0.177-0.004c-1.568,0-3.075,0.871-3.809,2.377
+	<rect class="ColorScheme-Text" fill="currentColor" x="34.258" y="17.069" transform="matrix(-0.8986 -0.4387 0.4387 -0.8986 57.8587 64.4621)" width="4.238" height="16.954"/>
+	<path class="ColorScheme-Text" fill="currentColor" d="M29.48,34.842c-0.059-0.004-0.118-0.004-0.177-0.004c-1.568,0-3.075,0.871-3.809,2.377
 		c-0.458,0.936-0.64,1.984-1.146,2.912c-0.395,0.723-0.917,1.361-1.596,1.834c-0.962,0.668-2.174,1.078-3.315,1.322
 		c-0.244,0.051-0.463,0.057-0.709,0.062C21.675,44.549,24.048,45,25.949,45c5.708,0,7.163-4.066,7.163-4.066
 		c0.611-1.252,0.536-2.652-0.057-3.805l0.021,0.012l0.744-1.523l-3.809-1.859L29.48,34.842z"/>
-	<path fill="#FFFFFF" d="M42.439,17.96l-3.808-1.859c-0.138-0.067-0.288-0.102-0.439-0.102c-0.11,0-0.22,0.018-0.325,0.054
+	<path class="ColorScheme-Background" fill="currentColor" d="M42.439,17.96l-3.808-1.859c-0.138-0.067-0.288-0.102-0.439-0.102c-0.11,0-0.22,0.018-0.325,0.054
 		c-0.251,0.086-0.457,0.269-0.573,0.507l-7.438,15.237c-0.117,0.238-0.133,0.512-0.047,0.764c0.027,0.078,0.078,0.141,0.122,0.209
 		c-0.339,0.027-0.657,0.221-0.817,0.549l-0.264,0.539c-1.833,0.154-3.437,1.244-4.253,2.918c-0.24,0.492-0.406,0.988-0.567,1.469
 		c-0.169,0.506-0.328,0.982-0.558,1.402c-0.348,0.637-0.782,1.139-1.29,1.494c-0.726,0.504-1.748,0.906-2.953,1.164
diff --git a/Orange/widgets/data/icons/Pivot.svg b/Orange/widgets/data/icons/Pivot.svg
index b25c7063a75..82d1bfe1eba 100644
--- a/Orange/widgets/data/icons/Pivot.svg
+++ b/Orange/widgets/data/icons/Pivot.svg
@@ -2,29 +2,28 @@
 <!-- Generator: Adobe Illustrator 23.0.4, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 viewBox="0 0 48 48" style="enable-background:new 0 0 48 48;" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <style type="text/css">
 	.st0{fill:#FFFFFF;}
 	.st1{fill:#333333;}
 	.st2{fill:none;stroke:#000000;stroke-width:2.5;stroke-miterlimit:10;}
 </style>
-<g id="zXDtGm_1_">
-</g>
 <g>
-	<rect x="6.9" y="10.6" class="st0" width="34.1" height="30.6"/>
-	<path class="st1" d="M6,6v36h36V6H6z M40,22L40,22v1l0,0v8l0,0v1l0,0v8l0,0H30h-1H19h-1H8l0,0V14l0,0h10h1h10h1h10l0,0V22z"/>
-	<rect x="40" y="32" class="st0" width="0" height="8"/>
-	<rect x="40" y="23" class="st0" width="0" height="8"/>
-	<rect x="40" y="14" class="st0" width="0" height="8"/>
-	<rect x="-8" y="20" transform="matrix(4.486817e-11 -1 1 4.486817e-11 -14 34)" class="st1" width="36" height="8"/>
+	<rect class="ColorScheme-Background" fill="currentColor" x="6.9" y="10.6" width="34.1" height="30.6"/>
+	<path class="ColorScheme-Text" fill="currentColor" d="M6,6v36h36V6H6z M40,22L40,22v1l0,0v8l0,0v1l0,0v8l0,0H30h-1H19h-1H8l0,0V14l0,0h10h1h10h1h10l0,0V22z"/>
+	<rect class="ColorScheme-Text" fill="currentColor" x="-8" y="20" transform="matrix(4.486817e-11 -1 1 4.486817e-11 -14 34)" width="36" height="8"/>
 	<g>
-		<g>
-			<path class="st2" d="M21.1,34.2c0,0,5.8,0.6,9.6-3.3c1.9-1.9,3.2-4.9,3.2-9.5"/>
-			<g>
-				<polygon points="21.9,38.6 14.8,33.5 22.8,30 				"/>
-			</g>
-			<g>
-				<polygon points="38.3,22.6 33.9,15.1 29.5,22.6 				"/>
-			</g>
+		<path class="ColorScheme-Text" stroke="currentColor" fill="none" stroke-width="2.5"
+			  stroke-miterlimit="10" d="M21.1,34.2c0,0,5.8,0.6,9.6-3.3c1.9-1.9,3.2-4.9,3.2-9.5"/>
+		<g class="ColorScheme-Text" fill="currentColor">
+			<polygon points="21.9,38.6 14.8,33.5 22.8,30 				"/>
+			<polygon points="38.3,22.6 33.9,15.1 29.5,22.6 				"/>
 		</g>
 	</g>
 </g>
diff --git a/Orange/widgets/data/icons/Preprocess.svg b/Orange/widgets/data/icons/Preprocess.svg
index f601c9d1ea5..5a7d23ea408 100644
--- a/Orange/widgets/data/icons/Preprocess.svg
+++ b/Orange/widgets/data/icons/Preprocess.svg
@@ -3,16 +3,23 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<g>
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Text" fill="currentColor">
 	<g>
-		<path fill="#333333" d="M29.385,19.796v-2.145l-3.217-1.072l-0.58-1.613l1.518-3.033l-1.516-1.515l-3.033,1.516l-1.75-0.717
+		<path d="M29.385,19.796v-2.145l-3.217-1.072l-0.58-1.613l1.518-3.033l-1.516-1.515l-3.033,1.516l-1.75-0.717
 			L19.734,8H17.59l-1.072,3.217l-1.609,0.547l-3.033-1.518l-1.518,1.516l1.518,3.033l-0.721,1.784l-3.217,1.072v2.144l3.217,1.074
 			l0.723,1.775l-1.52,3.034l1.518,1.515l3.033-1.516l1.609,0.553l1.072,3.219h2.143l1.074-3.219l1.75-0.722l3.033,1.519l1.516-1.516
 			l-1.516-3.034l0.578-1.608L29.385,19.796z M18.662,21.941c-1.777,0-3.217-1.44-3.217-3.218c0-1.776,1.439-3.218,3.217-3.218
 			s3.217,1.441,3.217,3.218C21.879,20.501,20.439,21.941,18.662,21.941z"/>
 	</g>
 	<g>
-		<path fill="#333333" d="M39.256,35.883l0.678-1.574l-2.025-1.808l0.082-1.368l2.074-1.751l-0.637-1.592l-2.709,0.157L35.66,26.87
+		<path d="M39.256,35.883l0.678-1.574l-2.025-1.808l0.082-1.368l2.074-1.751l-0.637-1.592l-2.709,0.157L35.66,26.87
 			l0.227-2.704l-1.578-0.676l-1.803,2.024l-1.355-0.106l-1.75-2.073l-1.594,0.638l0.156,2.706l-1.092,1.083l-2.703-0.227
 			l-0.678,1.577l2.027,1.804l-0.031,1.533l-2.074,1.752l0.639,1.591l2.707-0.157l1.008,0.916l-0.229,2.705l1.576,0.676l1.805-2.027
 			l1.516,0.021L34.184,40l1.594-0.637l-0.158-2.707l0.934-0.998L39.256,35.883z M30.697,34.074c-1.307-0.562-1.912-2.074-1.35-3.381
diff --git a/Orange/widgets/data/icons/PurgeDomain.svg b/Orange/widgets/data/icons/PurgeDomain.svg
index d07e240dc87..08f61b86296 100644
--- a/Orange/widgets/data/icons/PurgeDomain.svg
+++ b/Orange/widgets/data/icons/PurgeDomain.svg
@@ -2,16 +2,33 @@
 <!-- Generator: Adobe Illustrator 16.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 		 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-	<path d="M6,6v36h36v-36h-36zm34,16v18h-32v-26h32v8z" fill="#333"/>
-	<path d="M30,14h-1v8h-10v-8h-1v8h-10v-8,26-8h10v8h1v-8h10v8h1v-8h10v-1h-10v-8h10v-1h-10v-8zm-12,17h-10v-8h10v8zm11,0h-10v-8h10v8z" fill="#666"/>
-	<rect height="8" width="10" y="32" x="8" fill="#FFF"/>
-	<rect height="8" width="10" y="23" x="8" fill="#FFF"/>
-	<rect height="8" width="10" y="14" x="8" fill="#FFF"/>
-	<rect height="25.974" width="10" y="14" x="19" fill="#FFF"/>
-	<rect height="8" width="0" y="32" x="40" fill="#FFF"/>
-	<rect height="8" width="10" y="32" x="30" fill="#FFF"/>
-	<rect height="8" width="0" y="23" x="40" fill="#FFF"/>
-	<rect height="8" width="10" y="23" x="30" fill="#FFF"/>
-	<rect height="8" width="0" y="14" x="40" fill="#FFF"/>
-	<rect height="8" width="10" y="14" x="30" fill="#FFF"/>
-<g fill="#666" transform="matrix(1.0046929,0,0,1.0036098,-0.13609315,-0.09746724)"><path d="M19,19.2,24,14,19,14z"/><path d="M19,24.4,29,14,29,19.2,19,29.6z"/><path d="M19,34.8,29,24.4,29,29.6,19,40z"/><path d="m24,40,5-5.2,0,5.2z"/></g></svg>
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+	<g class="ColorScheme-Text" fill="currentColor">
+	<path d="M6,6v36h36v-36h-36zm34,16v18h-32v-26h32v8z"/>
+	<path d="M30,14h-1v8h-10v-8h-1v8h-10v-8,26-8h10v8h1v-8h10v8h1v-8h10v-1h-10v-8h10v-1h-10v-8zm-12,17h-10v-8h10v8zm11,0h-10v-8h10v8z"/>
+	</g>
+	<g class="ColorScheme-Background" fill="currentColor">
+	<rect height="8" width="10" y="32" x="8" />
+	<rect height="8" width="10" y="23" x="8" />
+	<rect height="8" width="10" y="14" x="8" />
+	<rect height="25.974" width="10" y="14" x="19" />
+	<rect height="8" width="0" y="32" x="40" />
+	<rect height="8" width="10" y="32" x="30" />
+	<rect height="8" width="0" y="23" x="40" />
+	<rect height="8" width="10" y="23" x="30" />
+	<rect height="8" width="0" y="14" x="40" />
+	<rect height="8" width="10" y="14" x="30" />
+	</g>
+<g fill="#666" transform="matrix(1.0046929,0,0,1.0036098,-0.13609315,-0.09746724)">
+	<path d="M19,19.2,24,14,19,14z"/>
+	<path d="M19,24.4,29,14,29,19.2,19,29.6z"/>
+	<path d="M19,34.8,29,24.4,29,29.6,19,40z"/>
+	<path d="m24,40,5-5.2,0,5.2z"/>
+</g>
+</svg>
diff --git a/Orange/widgets/data/icons/PythonScript.svg b/Orange/widgets/data/icons/PythonScript.svg
index 8183a003a68..bdb677d484a 100644
--- a/Orange/widgets/data/icons/PythonScript.svg
+++ b/Orange/widgets/data/icons/PythonScript.svg
@@ -3,13 +3,26 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <g>
-	<path id="path1948" fill="#333333" d="M23.788,6c-1.469,0.007-2.871,0.132-4.105,0.351c-3.633,0.642-4.293,1.986-4.293,4.464v3.273
+
+	<path class="ColorScheme-Text" fill="currentColor" d="M23.788,6c-1.469,0.007-2.871,0.132-4.105,0.351c-3.633,0.642-4.293,1.986-4.293,4.464v3.273
 		h8.588v1.091H15.39h-3.223c-2.496,0-4.682,1.5-5.365,4.354c-0.789,3.271-0.824,5.312,0,8.729c0.609,2.542,2.068,4.354,4.564,4.354
 		h2.951v-3.924c0-2.835,2.453-5.335,5.365-5.335h8.58c2.387,0,4.293-1.966,4.293-4.364v-8.178c0-2.327-1.963-4.076-4.293-4.464
 		C26.786,6.105,25.255,5.994,23.788,6z M19.144,8.633c0.887,0,1.611,0.736,1.611,1.642c0,0.902-0.725,1.632-1.611,1.632
 		c-0.891,0-1.611-0.729-1.611-1.632C17.532,9.37,18.253,8.633,19.144,8.633z"/>
-	<path id="path1950" fill="#666666" d="M33.628,15.18v3.814c0,2.957-2.508,5.445-5.365,5.445h-8.58c-2.35,0-4.293,2.011-4.293,4.365
+	<path class="ColorScheme-Background" fill="currentColor" d="M33.628,15.18v3.814c0,2.957-2.508,5.445-5.365,5.445h-8.58c-2.35,0-4.293,2.011-4.293,4.365
+		v8.178c0,2.327,2.023,3.696,4.293,4.364c2.719,0.799,5.326,0.943,8.58,0c2.162-0.625,4.293-1.887,4.293-4.364v-3.272h-8.578v-1.092
+		h8.578h4.295c2.496,0,3.426-1.74,4.295-4.354c0.896-2.691,0.857-5.278,0-8.729c-0.617-2.485-1.797-4.354-4.295-4.354H33.628z
+		 M28.802,35.891c0.891,0,1.613,0.729,1.613,1.631c0,0.906-0.723,1.643-1.613,1.643c-0.887,0-1.611-0.736-1.611-1.643
+		C27.19,36.62,27.915,35.891,28.802,35.891z"/>
+	<path class="ColorScheme-Text" fill="currentColor" opacity="0.6" d="M33.628,15.18v3.814c0,2.957-2.508,5.445-5.365,5.445h-8.58c-2.35,0-4.293,2.011-4.293,4.365
 		v8.178c0,2.327,2.023,3.696,4.293,4.364c2.719,0.799,5.326,0.943,8.58,0c2.162-0.625,4.293-1.887,4.293-4.364v-3.272h-8.578v-1.092
 		h8.578h4.295c2.496,0,3.426-1.74,4.295-4.354c0.896-2.691,0.857-5.278,0-8.729c-0.617-2.485-1.797-4.354-4.295-4.354H33.628z
 		 M28.802,35.891c0.891,0,1.613,0.729,1.613,1.631c0,0.906-0.723,1.643-1.613,1.643c-0.887,0-1.611-0.736-1.611-1.643
diff --git a/Orange/widgets/data/icons/Random.svg b/Orange/widgets/data/icons/Random.svg
index e2cf23ba3ef..408db9b1420 100644
--- a/Orange/widgets/data/icons/Random.svg
+++ b/Orange/widgets/data/icons/Random.svg
@@ -3,24 +3,25 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<g id="zXDtGm_1_">
-</g>
-<g>
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Text" fill="currentColor">
 	<g>
-		<polygon fill="#333333" points="28.445,37.864 32.558,37.602 35.091,34.349 36.172,44.448 		"/>
+		<polygon points="28.445,37.864 32.558,37.602 35.091,34.349 36.172,44.448 		"/>
+		<line stroke="currentColor" stroke-width="2" stroke-miterlimit="10" x1="33.97" y1="40.298" x2="15.357" y2="5.328"/>
 	</g>
-	<line fill="#333333" stroke="#333333" stroke-width="2" stroke-miterlimit="10" x1="33.97" y1="40.298" x2="15.357" y2="5.328"/>
-</g>
-<g>
 	<g>
-		<polygon fill="#333333" points="33.136,13.426 31.037,9.88 26.989,9.098 35.496,3.551 		"/>
+		<polygon points="33.136,13.426 31.037,9.88 26.989,9.098 35.496,3.551 		"/>
+		<line stroke="currentColor" stroke-width="2" stroke-miterlimit="10" x1="32.798" y1="7.398" x2="10.076" y2="39.848"/>
 	</g>
-	<line fill="#333333" stroke="#333333" stroke-width="2" stroke-miterlimit="10" x1="32.798" y1="7.398" x2="10.076" y2="39.848"/>
-</g>
-<g>
 	<g>
-		<polygon fill="#333333" points="11.4,23.59 9.591,27.295 11.162,31.107 1.853,27.046 		"/>
+		<polygon points="11.4,23.59 9.591,27.295 11.162,31.107 1.853,27.046 		"/>
+		<line stroke="currentColor" stroke-width="2" stroke-miterlimit="10" x1="6.55" y1="27.186" x2="46.146" y2="28.335"/>
 	</g>
-	<line fill="#333333" stroke="#333333" stroke-width="2" stroke-miterlimit="10" x1="6.55" y1="27.186" x2="46.146" y2="28.335"/>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/Rank.svg b/Orange/widgets/data/icons/Rank.svg
index bad613ca456..b9c5b6da00f 100644
--- a/Orange/widgets/data/icons/Rank.svg
+++ b/Orange/widgets/data/icons/Rank.svg
@@ -3,11 +3,20 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<rect x="19" y="11" fill="#333333" width="10" height="25"/>
-<rect x="30" y="21" fill="#333333" width="10" height="15"/>
-<rect x="8" y="16" fill="#333333" width="10" height="20"/>
-<g>
-	<path fill="#FFFFFF" d="M33.705,30.182c0,0.34,0.055,0.621,0.164,0.844c0.203,0.41,0.571,0.615,1.105,0.615
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Text" style="fill:currentColor">
+<rect x="19" y="11" width="10" height="25"/>
+<rect x="30" y="21" width="10" height="15"/>
+<rect x="8" y="16" width="10" height="20"/>
+</g>
+<g class="ColorScheme-Background" style="fill:currentColor">
+	<path d="M33.705,30.182c0,0.34,0.055,0.621,0.164,0.844c0.203,0.41,0.571,0.615,1.105,0.615
 		c0.327,0,0.613-0.112,0.856-0.337c0.243-0.225,0.365-0.548,0.365-0.97c0-0.559-0.226-0.932-0.678-1.119
 		c-0.257-0.105-0.662-0.158-1.215-0.158v-1.195c0.541-0.008,0.918-0.061,1.133-0.158c0.37-0.164,0.555-0.496,0.555-0.996
 		c0-0.324-0.095-0.588-0.283-0.791c-0.189-0.203-0.455-0.305-0.798-0.305c-0.394,0-0.683,0.125-0.868,0.375
@@ -16,17 +25,13 @@
 		c0,0.5-0.148,0.922-0.445,1.266c-0.188,0.215-0.383,0.361-0.586,0.439c0.152,0,0.371,0.131,0.656,0.393
 		c0.426,0.395,0.639,0.934,0.639,1.617c0,0.719-0.249,1.351-0.746,1.896C36.691,32.728,35.955,33,34.979,33
 		c-1.202,0-2.037-0.393-2.505-1.178c-0.246-0.418-0.382-0.965-0.41-1.641H33.705z"/>
-</g>
-<g>
-	<path fill="#FFFFFF" d="M10.483,31.33c0.238-0.566,0.801-1.166,1.688-1.799c0.77-0.551,1.268-0.945,1.494-1.184
+	<path d="M10.483,31.33c0.238-0.566,0.801-1.166,1.688-1.799c0.77-0.551,1.268-0.945,1.494-1.184
 		c0.348-0.371,0.521-0.777,0.521-1.219c0-0.359-0.1-0.658-0.299-0.896s-0.484-0.357-0.855-0.357c-0.508,0-0.854,0.189-1.037,0.568
 		c-0.105,0.219-0.168,0.566-0.188,1.043h-1.623c0.027-0.723,0.158-1.307,0.393-1.752c0.446-0.848,1.237-1.271,2.375-1.271
 		c0.899,0,1.615,0.249,2.146,0.747s0.798,1.157,0.798,1.978c0,0.629-0.188,1.188-0.563,1.676c-0.247,0.324-0.652,0.686-1.215,1.084
 		l-0.669,0.475c-0.418,0.297-0.705,0.512-0.859,0.645s-0.284,0.287-0.39,0.463h3.709V33h-5.818
 		C10.106,32.391,10.237,31.834,10.483,31.33z"/>
-</g>
-<g>
-	<path fill="#FFFFFF" d="M21.291,27.141v-1.137c0.526-0.023,0.894-0.059,1.104-0.105c0.335-0.074,0.608-0.223,0.818-0.445
+	<path d="M21.291,27.141v-1.137c0.526-0.023,0.894-0.059,1.104-0.105c0.335-0.074,0.608-0.223,0.818-0.445
 		c0.144-0.152,0.253-0.355,0.327-0.609c0.043-0.152,0.064-0.266,0.064-0.34H25V33h-1.711v-5.859H21.291z"/>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/SQLTable.svg b/Orange/widgets/data/icons/SQLTable.svg
index 3c2f1d962ae..14cc90b4fc4 100644
--- a/Orange/widgets/data/icons/SQLTable.svg
+++ b/Orange/widgets/data/icons/SQLTable.svg
@@ -3,15 +3,27 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <g>
-	<path fill="#FFFFFF" stroke="#000000" stroke-width="2" stroke-miterlimit="10" d="M38.271,12.665v24.656
+	<path class="ColorScheme-Background" fill="currentColor" stroke="none" d="M38.271,12.665v24.656
 		c0,2.27-6.389,4.109-14.272,4.109c-7.882,0-14.271-1.84-14.271-4.109V12.665c0-2.27,6.39-4.11,14.271-4.11
 		C31.883,8.555,38.271,10.395,38.271,12.665z"/>
-	<path fill="none" stroke="#000000" stroke-miterlimit="10" d="M38.271,20.884c0,2.27-6.389,4.109-14.272,4.109
+	<path class="ColorScheme-Text" stroke="currentColor" fill="none" stroke-width="2" stroke-miterlimit="10" d="M38.271,12.665v24.656
+		c0,2.27-6.389,4.109-14.272,4.109c-7.882,0-14.271-1.84-14.271-4.109V12.665c0-2.27,6.39-4.11,14.271-4.11
+		C31.883,8.555,38.271,10.395,38.271,12.665z"/>
+	<path class="ColorScheme-Text" stroke="currentColor" fill="none" stroke-miterlimit="10" d="M38.271,20.884c0,2.27-6.389,4.109-14.272,4.109
+		c-7.882,0-14.271-1.84-14.271-4.109"/>
+	<path class="ColorScheme-Text" stroke="currentColor" fill="none" stroke-miterlimit="10" d="M38.271,29.103c0,2.27-6.389,4.109-14.272,4.109
 		c-7.882,0-14.271-1.84-14.271-4.109"/>
-	<path fill="none" stroke="#000000" stroke-miterlimit="10" d="M38.271,29.103c0,2.27-6.389,4.109-14.272,4.109
+	<path class="ColorScheme-Background" fill="currentColor" stroke="none" d="M38.271,13.047c0,2.27-6.389,4.109-14.272,4.109
 		c-7.882,0-14.271-1.84-14.271-4.109"/>
-	<path fill="#FFFFFF" stroke="#000000" stroke-width="2" stroke-miterlimit="10" d="M38.271,13.047c0,2.27-6.389,4.109-14.272,4.109
+	<path class="ColorScheme-Text" stroke="currentColor" fill="none" stroke-width="2" stroke-miterlimit="10" d="M38.271,13.047c0,2.27-6.389,4.109-14.272,4.109
 		c-7.882,0-14.271-1.84-14.271-4.109"/>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/Save.svg b/Orange/widgets/data/icons/Save.svg
index 3389676ddf2..73b6076760f 100644
--- a/Orange/widgets/data/icons/Save.svg
+++ b/Orange/widgets/data/icons/Save.svg
@@ -3,10 +3,17 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <g>
-	<path fill="#333333" d="M37,6L7,6v36h34V9.993L37,6z M15,8h18v8.993L32,18H16l-1-1.007V8z M37,40H11V24h2.995h17.972H37V40z"/>
-	<polygon fill="#FFFFFF" points="13.995,24 11,24 11,40 37,40 37,24 31.967,24 	"/>
-	<path fill="#FFFFFF" d="M32,18l1-1.007V8H15v8.993L16,18H32z M27,9h4v8h-4V9z"/>
-	<rect x="27" y="9" fill="#333333" width="4" height="8"/>
+	<path class="ColorScheme-Text" fill="currentColor" d="M37,6L7,6v36h34V9.993L37,6z M15,8h18v8.993L32,18H16l-1-1.007V8z M37,40H11V24h2.995h17.972H37V40z"/>
+	<polygon class="ColorScheme-Background" fill="currentColor" points="13.995,24 11,24 11,40 37,40 37,24 31.967,24 	"/>
+	<path class="ColorScheme-Background" fill="currentColor" d="M32,18l1-1.007V8H15v8.993L16,18H32z M27,9h4v8h-4V9z"/>
+	<rect class="ColorScheme-Text" fill="currentColor" x="27" y="9" width="4" height="8"/>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/SelectByDataIndex.svg b/Orange/widgets/data/icons/SelectByDataIndex.svg
index cd6e10ade5f..6f3255d14d6 100644
--- a/Orange/widgets/data/icons/SelectByDataIndex.svg
+++ b/Orange/widgets/data/icons/SelectByDataIndex.svg
@@ -2,23 +2,32 @@
 <!-- Generator: Adobe Illustrator 22.0.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 viewBox="-102.5 271.5 48 48" enable-background="new -102.5 271.5 48 48" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <g>
-	<path fill="#333333" d="M-82.654,274.729h-1.385v12.463h1.385v5.539h-2.769v5.539h2.769v5.539h-2.769v5.539h2.769v6.924h19.386
+	<path class="ColorScheme-Text" fill="currentColor" d="M-82.654,274.729h-1.385v12.463h1.385v5.539h-2.769v5.539h2.769v5.539h-2.769v5.539h2.769v6.924h19.386
 		v-41.542H-82.654z M-66.037,277.499v11.078v1.385v11.078v1.385v11.078h-6.924h-1.385h-6.924v-11.078v-1.385v-11.078v-1.385v-11.078
 		l0,0h6.924l0,0h1.385l0,0H-66.037L-66.037,277.499z"/>
-	<polygon fill="#666666" points="-72.961,277.499 -74.346,277.499 -74.346,288.576 -81.269,288.576 -81.269,289.961 
+	<polygon class="ColorScheme-Text" fill="currentColor" points="-72.961,277.499 -74.346,277.499 -74.346,288.576 -81.269,288.576 -81.269,289.961
 		-74.346,289.961 -74.346,301.039 -81.269,301.039 -81.269,302.424 -74.346,302.424 -74.346,313.501 -72.961,313.501 
 		-72.961,302.424 -66.037,302.424 -66.037,301.039 -72.961,301.039 -72.961,289.961 -66.037,289.961 -66.037,288.576 
 		-72.961,288.576 	"/>
-	<rect x="-72.961" y="302.424" fill="#FFFFFF" width="6.924" height="11.078"/>
-	<rect x="-81.269" y="302.424" fill="#FFFFFF" width="6.924" height="11.078"/>
-	<rect x="-72.961" y="289.961" fill="#FFFFFF" width="6.924" height="11.078"/>
-	<rect x="-81.269" y="289.961" fill="#FFFFFF" width="6.924" height="11.078"/>
-	<rect x="-72.961" y="277.499" fill="#FFFFFF" width="6.924" height="11.078"/>
-	<rect x="-81.269" y="277.499" fill="#FFFFFF" width="6.924" height="11.078"/>
-	<polygon fill="#333333" points="-88.193,292.731 -88.193,287.192 -90.963,287.192 -92.347,287.192 -92.347,289.961 
+	<g  class="ColorScheme-Background" fill="currentColor">
+	<rect x="-72.961" y="302.424" width="6.924" height="11.078"/>
+	<rect x="-81.269" y="302.424" width="6.924" height="11.078"/>
+	<rect x="-72.961" y="289.961" width="6.924" height="11.078"/>
+	<rect x="-81.269" y="289.961" width="6.924" height="11.078"/>
+	<rect x="-72.961" y="277.499" width="6.924" height="11.078"/>
+	<rect x="-81.269" y="277.499" width="6.924" height="11.078"/>
+	</g>
+	<polygon class="ColorScheme-Text" fill="currentColor" points="-88.193,292.731 -88.193,287.192 -90.963,287.192 -92.347,287.192 -92.347,289.961
 		-92.347,290.192 -92.347,301.039 -92.347,302.424 -92.347,313.501 -92.347,316.271 -90.963,316.271 -88.193,316.271 
 		-88.193,309.347 -90.963,309.347 -90.963,303.808 -88.193,303.808 -88.193,298.269 -90.963,298.269 -90.963,292.731 	"/>
-	<rect x="-93.732" y="287.192" fill="#333333" width="2.769" height="29.079"/>
+	<rect class="ColorScheme-Text" fill="currentColor" x="-93.732" y="287.192" width="2.769" height="29.079"/>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/SelectColumns.svg b/Orange/widgets/data/icons/SelectColumns.svg
index 76e493c6f69..960d5e56ffe 100644
--- a/Orange/widgets/data/icons/SelectColumns.svg
+++ b/Orange/widgets/data/icons/SelectColumns.svg
@@ -3,28 +3,39 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<rect x="30" y="32" fill="#FFFFFF" width="10" height="8"/>
+	<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+
 <g>
-	<path fill="#333333" d="M6,6v36h36V6H6z M40,14v8v1v8v9H29H19h-1H8v-8v-1v-8v-1v-8l0,0h10l0,0h1l0,0h10l0,0h1l0,0H40L40,14z"/>
-	<polygon fill="#666666" points="19,31 19,23 19,22 19,14 18,14 18,22 8,22 8,23 18,23 18,31 8,31 8,32 18,32 18,40 19,40 19,32 	
-		"/>
-	<polygon fill="#666666" points="30,14 29,14 29,22 29,23 29,31 29,32 29,40 40,40 40,31 30,31 30,23 40,23 40,22 30,22 	"/>
-	<rect x="8" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="8" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<polygon fill="#FFFFFF" points="8,14 18,14 18,14 	"/>
-	<rect x="8" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="32" fill="#B2B2B2" width="10" height="8"/>
-	<rect x="19" y="23" fill="#B2B2B2" width="10" height="8"/>
-	<polygon fill="#B2B2B2" points="19,14 29,14 29,14 	"/>
-	<rect x="19" y="14" fill="#B2B2B2" width="10" height="8"/>
-	<rect x="30" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<polygon fill="#FFFFFF" points="30,14 40,14 40,14 	"/>
-	<rect x="30" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="22" fill="#989898" width="10" height="1"/>
-	<rect x="19" y="31" fill="#989898" width="10" height="1"/>
+	<path class="ColorScheme-Text" fill="currentColor" d="M6,6v36h36V6H6z M40,14v8v1v8v9H29H19h-1H8v-8v-1v-8v-1v-8l0,0h10l0,0h1l0,0h10l0,0h1l0,0H40L40,14z"/>
+	<polygon class="ColorScheme-Text" fill="currentColor" points="19,31 19,23 19,22 19,14 18,14 18,22 8,22 8,23 18,23 18,31 8,31 8,32 18,32 18,40 19,40 19,32"/>
+	<polygon class="ColorScheme-Text" fill="currentColor" points="30,14 29,14 29,22 29,23 29,31 29,32 29,40 40,40 40,31 30,31 30,23 40,23 40,22 30,22 	"/>
+	<g class="ColorScheme-Background" fill="currentColor">
+		<rect x="30" y="32" width="10" height="8"/>
+		<rect x="8" y="32" width="10" height="8"/>
+		<rect x="8" y="23" width="10" height="8"/>
+		<rect x="8" y="14" width="10" height="8"/>
+		<rect x="19" y="32" width="10" height="8"/>
+		<rect x="19" y="23" width="10" height="8"/>
+		<rect x="19" y="14" width="10" height="8"/>
+		<rect x="30" y="23" width="10" height="8"/>
+		<rect x="30" y="14" width="10" height="8"/>
+	</g>
+	<g class="ColorScheme-Text" fill="currentColor">
+		<rect x="19" y="22" opacity="0.5" width="10" height="1"/>
+		<rect x="19" y="31" opacity="0.5" width="10" height="1"/>
+	</g>
+	<g class="ColorScheme-Text" fill="currentColor">
+		<rect opacity="0.5" x="19" y="14" width="10" height="26"/>
+	</g>
 </g>
 <g>
-	<path fill="#333333" d="M32.179,41.76c0.44-1.36,0.817-2.74,1.178-4.123c0.148-0.57,0.288-1.144,0.43-1.718
+	<path class="ColorScheme-Text" fill="currentColor" d="M32.179,41.76c0.44-1.36,0.817-2.74,1.178-4.123c0.148-0.57,0.288-1.144,0.43-1.718
 		c0.1-0.396,0.244-0.795,0.206-1.2c-0.007-0.089-0.022-0.179-0.051-0.266c-0.142-0.46-0.461-0.872-0.879-1.113
 		c-0.057-0.034-0.114-0.062-0.173-0.085c-0.193-0.073-0.394-0.085-0.604-0.021c-0.328,0.101-0.564,0.431-0.871,0.526
 		c-0.094,0.029-0.175,0.025-0.246-0.002c-0.321-0.123-0.449-0.724-0.637-0.957c-0.172-0.216-0.397-0.376-0.65-0.473
@@ -40,7 +51,7 @@
 		c0.021,0.008,0.042,0.015,0.063,0.021c0.322,0.087,0.841-0.049,1.183-0.053c0.471-0.006,0.939-0.013,1.41-0.019
 		c1.189-0.016,2.379-0.039,3.568-0.049c0.589-0.003,1.435,0.211,1.868-0.312c0.447-0.54,0.475-1.46,0.751-2.097
 		C31.939,42.685,32.036,42.207,32.179,41.76z"/>
-	<path fill="#FFFFFF" d="M32.479,44.173c0.062-0.253,0.118-0.49,0.191-0.656c0.148-0.346,0.247-0.697,0.333-1.009
+	<path class="ColorScheme-Background" fill="currentColor" d="M32.479,44.173c0.062-0.253,0.118-0.49,0.191-0.656c0.148-0.346,0.247-0.697,0.333-1.009
 		c0.042-0.148,0.083-0.298,0.129-0.442c0.47-1.452,0.867-2.926,1.193-4.176c0.11-0.427,0.216-0.854,0.321-1.281l0.11-0.449
 		l0.058-0.215c0.099-0.363,0.222-0.814,0.176-1.318c-0.011-0.147-0.043-0.311-0.091-0.47c-0.219-0.707-0.706-1.32-1.337-1.685
 		c-0.1-0.06-0.206-0.109-0.314-0.151c-0.407-0.155-0.842-0.17-1.254-0.043c-0.184,0.055-0.341,0.138-0.476,0.223
diff --git a/Orange/widgets/data/icons/SelectRows.svg b/Orange/widgets/data/icons/SelectRows.svg
index ccb1e058e57..92518e2e808 100644
--- a/Orange/widgets/data/icons/SelectRows.svg
+++ b/Orange/widgets/data/icons/SelectRows.svg
@@ -3,30 +3,39 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <g>
-	<path fill="#333333" d="M6,6v36h36V6H6z M40,14v8v1v8v1v8H30h-1H19h-1H8v-8v-1v-8v-1v-8l0,0h10l0,0h1l0,0h10l0,0h1l0,0H40L40,14z"
-		/>
-	<polygon fill="#666666" points="30,14 29,14 29,22 19,22 19,14 18,14 18,22 8,22 8,23 18,23 18,23 19,23 19,23 29,23 29,23 30,23 
+	<g class="ColorScheme-Text" fill="currentColor">
+	<path d="M6,6v36h36V6H6z M40,14v8v1v8v1v8H30h-1H19h-1H8v-8v-1v-8v-1v-8l0,0h10l0,0h1l0,0h10l0,0h1l0,0H40L40,14z"/>
+	<polygon points="30,14 29,14 29,22 19,22 19,14 18,14 18,22 8,22 8,23 18,23 18,23 19,23 19,23 29,23 29,23 30,23
 		30,23 40,23 40,22 30,22 	"/>
-	<polygon fill="#666666" points="29,31 19,31 18,31 8,31 8,32 18,32 18,40 19,40 19,32 29,32 29,40 30,40 30,32 40,32 40,31 30,31 	
-		"/>
-	<rect x="8" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="8" y="23" fill="#B2B2B2" width="10" height="8"/>
-	<polygon fill="#FFFFFF" points="8,14 18,14 18,14 	"/>
-	<rect x="8" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="23" fill="#B2B2B2" width="10" height="8"/>
-	<polygon fill="#FFFFFF" points="19,14 29,14 29,14 	"/>
-	<rect x="19" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="30" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="30" y="23" fill="#B2B2B2" width="10" height="8"/>
-	<polygon fill="#FFFFFF" points="30,14 40,14 40,14 	"/>
-	<rect x="30" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<polygon fill="#989898" points="19,31 19,23 19,23 18,23 18,23 18,31 	"/>
-	<polygon fill="#989898" points="30,31 30,23 30,23 29,23 29,23 29,31 	"/>
+	<polygon points="29,31 19,31 18,31 8,31 8,32 18,32 18,40 19,40 19,32 29,32 29,40 30,40 30,32 40,32 40,31 30,31"/>
+	</g>
+	<g class="ColorScheme-Background" fill="currentColor">
+		<rect x="8" y="32" width="10" height="8"/>
+		<rect x="8" y="23" width="10" height="8"/>
+		<rect x="8" y="14" width="10" height="8"/>
+		<rect x="19" y="32" width="10" height="8"/>
+		<rect x="19" y="23" width="10" height="8"/>
+		<rect x="19" y="14" width="10" height="8"/>
+		<rect x="30" y="32" width="10" height="8"/>
+		<rect x="30" y="23" width="10" height="8"/>
+		<rect x="30" y="14" width="10" height="8"/>
+	</g>
+	<g class="ColorScheme-Text" fill="currentColor">
+		<polygon opacity="0.5" points="19,31 19,23 19,23 18,23 18,23 18,31 	"/>
+		<polygon opacity="0.5" points="30,31 30,23 30,23 29,23 29,23 29,31 	"/>
+	</g>
+	<rect class="ColorScheme-Text" fill="currentColor" opacity="0.5" x="8" y="23" width="32" height="8"/>
 </g>
 <g>
-	<path fill="#333333" d="M43.684,29.709c-0.851-1.15-1.752-2.261-2.665-3.359c-0.378-0.452-0.763-0.898-1.146-1.349
+	<path class="ColorScheme-Text" fill="currentColor" d="M43.684,29.709c-0.851-1.15-1.752-2.261-2.665-3.359c-0.378-0.452-0.763-0.898-1.146-1.349
 		c-0.265-0.312-0.506-0.661-0.856-0.867c-0.076-0.045-0.158-0.086-0.246-0.112c-0.457-0.153-0.978-0.133-1.417,0.066
 		c-0.06,0.025-0.117,0.056-0.17,0.09c-0.173,0.114-0.298,0.271-0.368,0.479c-0.109,0.325,0.021,0.71-0.08,1.016
 		c-0.031,0.091-0.081,0.157-0.145,0.197c-0.287,0.19-0.851-0.057-1.148-0.039c-0.275,0.013-0.538,0.104-0.764,0.253
@@ -42,7 +51,7 @@
 		c0.018-0.012,0.036-0.025,0.055-0.039c0.258-0.21,0.449-0.712,0.646-0.991c0.269-0.386,0.536-0.771,0.806-1.157
 		c0.68-0.977,1.353-1.958,2.038-2.93c0.34-0.479,1.007-1.043,0.835-1.7c-0.18-0.678-0.912-1.235-1.268-1.831
 		C44.296,30.44,43.964,30.085,43.684,29.709z"/>
-	<path fill="#FFFFFF" d="M45.819,30.87c-0.17-0.196-0.329-0.382-0.422-0.537c-0.193-0.321-0.423-0.607-0.625-0.858
+	<path class="ColorScheme-Background" fill="currentColor" d="M45.819,30.87c-0.17-0.196-0.329-0.382-0.422-0.537c-0.193-0.321-0.423-0.607-0.625-0.858
 		c-0.098-0.12-0.194-0.241-0.285-0.363c-0.907-1.227-1.873-2.408-2.699-3.401c-0.282-0.339-0.569-0.673-0.854-1.007l-0.301-0.351
 		l-0.142-0.174c-0.237-0.29-0.533-0.654-0.97-0.909c-0.126-0.077-0.276-0.147-0.434-0.2c-0.703-0.234-1.484-0.196-2.148,0.104
 		c-0.106,0.048-0.21,0.104-0.307,0.168c-0.363,0.24-0.628,0.584-0.765,0.995c-0.063,0.181-0.087,0.357-0.097,0.517
diff --git a/Orange/widgets/data/icons/Table.svg b/Orange/widgets/data/icons/Table.svg
index 40dec0ee052..5bb4aaff8ca 100644
--- a/Orange/widgets/data/icons/Table.svg
+++ b/Orange/widgets/data/icons/Table.svg
@@ -1,23 +1,32 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Generator: Adobe Illustrator 16.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<g>
-	<path fill="#333333" d="M6,6v36h36V6H6z M40,22L40,22v1l0,0v8l0,0v1l0,0v8h0H30h-1H19h-1H8l0,0V14l0,0h10h1h10h1h10h0V22z"/>
-	<path fill="#666666" d="M30,14h-1v8H19v-8h-1v8H8v-8l0,0v26l0,0v-8h10v8h1v-8h10v8h1v-8h10v-1H30v-8h10v-1H30V14z M18,31H8v-8h10
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Text" style="fill:currentColor">
+	<path d="M6,6v36h36V6H6z M40,22L40,22v1l0,0v8l0,0v1l0,0v8h0H30h-1H19h-1H8l0,0V14l0,0h10h1h10h1h10h0V22z"/>
+	<path d="M30,14h-1v8H19v-8h-1v8H8v-8l0,0v26l0,0v-8h10v8h1v-8h10v8h1v-8h10v-1H30v-8h10v-1H30V14z M18,31H8v-8h10
 		V31z M29,31H19v-8h10V31z"/>
-	<rect x="8" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="8" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="8" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="19" y="14" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="40" y="32" fill="#FFFFFF" width="0" height="8"/>
-	<rect x="30" y="32" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="40" y="23" fill="#FFFFFF" width="0" height="8"/>
-	<rect x="30" y="23" fill="#FFFFFF" width="10" height="8"/>
-	<rect x="40" y="14" fill="#FFFFFF" width="0" height="8"/>
-	<rect x="30" y="14" fill="#FFFFFF" width="10" height="8"/>
+</g>
+<g class="ColorScheme-Background" style="fill:currentColor; stroke:none;">
+
+	<rect x="8" y="32" width="10" height="8"/>
+	<rect x="8" y="23" width="10" height="8"/>
+	<rect x="8" y="14" width="10" height="8"/>
+	<rect x="19" y="32" width="10" height="8"/>
+	<rect x="19" y="23" width="10" height="8"/>
+	<rect x="19" y="14" width="10" height="8"/>
+	<rect x="40" y="32" width="0" height="8"/>
+	<rect x="30" y="32" width="10" height="8"/>
+	<rect x="40" y="23" width="0" height="8"/>
+	<rect x="30" y="23" width="10" height="8"/>
+	<rect x="40" y="14" width="0" height="8"/>
+	<rect x="30" y="14" width="10" height="8"/>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/Transform.svg b/Orange/widgets/data/icons/Transform.svg
index 6af2b5350e3..3ded5ea6648 100644
--- a/Orange/widgets/data/icons/Transform.svg
+++ b/Orange/widgets/data/icons/Transform.svg
@@ -2,29 +2,25 @@
 <!-- Generator: Adobe Illustrator 23.0.4, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 viewBox="0 0 48 48" style="enable-background:new 0 0 48 48;" xml:space="preserve">
-<style type="text/css">
-	.st0{fill:#FFFFFF;}
-	.st1{fill:#333333;}
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
 </style>
-<g id="zXDtGm_1_">
-</g>
+</defs>
 <g>
-	<rect x="7" y="10.7" class="st0" width="34.1" height="30.6"/>
-	<path class="st1" d="M6,6v36h36V6H6z M40,22L40,22v1l0,0v8l0,0v1l0,0v8l0,0H30h-1H19h-1H8l0,0V14l0,0h10h1h10h1h10l0,0V22z"/>
-	<rect x="40" y="32" class="st0" width="0" height="8"/>
-	<rect x="40" y="23" class="st0" width="0" height="8"/>
-	<rect x="40" y="14" class="st0" width="0" height="8"/>
-	<g>
+	<rect class="ColorScheme-Background" fill="currentColor" x="7" y="10.7" width="34.1" height="30.6"/>
+	<path class="ColorScheme-Text" fill="currentColor" d="M6,6v36h36V6H6z M40,22L40,22v1l0,0v8l0,0v1l0,0v8l0,0H30h-1H19h-1H8l0,0V14l0,0h10h1h10h1h10l0,0V22z"/>
+	<g class="ColorScheme-Background" fill="currentColor">
+	</g>
+	<g class="ColorScheme-Text" fill="currentColor">
 		<path d="M36.7,27.5l-2.4,1c-1.7-4-5.6-6.8-9.9-7.1l0.2-2.6C29.8,19.1,34.6,22.5,36.7,27.5z"/>
-		<g>
-			<polygon points="26.1,24.1 18.7,21.1 25,16.3 			"/>
-		</g>
+		<polygon points="26.1,24.1 18.7,21.1 25,16.3 			"/>
 	</g>
-	<g>
+	<g class="ColorScheme-Text" fill="currentColor">
 		<path d="M23.8,35.2c-5.4-0.3-10.2-3.7-12.2-8.7l2.4-1c1.7,4,5.6,6.8,9.9,7.1L23.8,35.2z"/>
-		<g>
-			<polygon points="22.2,29.9 29.6,32.9 23.3,37.7 			"/>
-		</g>
+		<polygon points="22.2,29.9 29.6,32.9 23.3,37.7 			"/>
 	</g>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/Transpose.svg b/Orange/widgets/data/icons/Transpose.svg
index 349428a5b24..e916393e439 100644
--- a/Orange/widgets/data/icons/Transpose.svg
+++ b/Orange/widgets/data/icons/Transpose.svg
@@ -2,49 +2,37 @@
 <!-- Generator: Adobe Illustrator 16.0.4, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1"
-	 id="Layer_1" sodipodi:docname="Transpose.svg" inkscape:version="0.91 r13725" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:svg="http://www.w3.org/2000/svg"
 	 xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="48px" height="48px"
 	 viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<sodipodi:namedview  objecttolerance="10" inkscape:cy="24.267132" bordercolor="#666666" id="namedview33" guidetolerance="10" inkscape:cx="27.991538" borderopacity="1" gridtolerance="10" showgrid="false" inkscape:zoom="9.8333333" pagecolor="#ffffff" inkscape:current-layer="Layer_1" inkscape:window-height="824" inkscape:pageopacity="0" inkscape:pageshadow="2" inkscape:window-x="63" inkscape:window-y="0" inkscape:window-width="1273" inkscape:window-maximized="0">
-	</sodipodi:namedview>
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <g>
-	<path fill="#333333" d="M2.777,27.037l33.26,13.777l9.185-22.173L11.962,4.865L2.777,27.037z M25.979,12.834L25.979,12.834
+	<path class="ColorScheme-Text" fill="currentColor" d="M2.777,27.037l33.26,13.777l9.185-22.173L11.962,4.865L2.777,27.037z M25.979,12.834L25.979,12.834
 		l0.924,0.383l0,0l7.392,3.062l0,0l0.924,0.382l0,0l7.391,3.062l0,0l0.766-1.848l-0.383,0.924l-3.827,9.24l-0.382,0.924
 		l-3.827,9.238l0,0l-24.021-9.949l0,0l3.827-9.24l0.383-0.924l3.827-9.238l0.382-0.924l-0.765,1.848l0,0L25.979,12.834z"/>
-	<path fill="#666666" d="M27.668,11.37 M25.979,12.834l-3.444,8.315l-7.391-3.062l-0.383,0.924l7.392,3.062l-3.827,9.239
+	<path class="ColorScheme-Text" fill="currentColor" d="M27.668,11.37 M25.979,12.834l-3.444,8.315l-7.391-3.062l-0.383,0.924l7.392,3.062l-3.827,9.239
 		l-7.391-3.061l0,0l24.021,9.949l0,0l-7.391-3.062l3.826-9.238l7.392,3.062l0.382-0.924l-7.391-3.062l3.444-8.315l7.391,3.062
 		 M26.744,10.987 M30.467,25.518l-3.826,9.238l-7.392-3.061l3.827-9.239L30.467,25.518z M34.294,16.28l-3.444,8.314l-7.391-3.061
 		l3.444-8.315L34.294,16.28z"/>
-	
-		<rect x="28.174" y="28.05" transform="matrix(-0.3826 0.9239 -0.9239 -0.3826 75.4785 13.6662)" fill="#FFFFFF" width="9.999" height="8.001"/>
-	
-		<rect x="19.858" y="24.607" transform="matrix(-0.3827 0.9239 -0.9239 -0.3827 60.7999 16.589)" fill="#FFFFFF" width="10" height="7.999"/>
-	
-		<rect x="11.543" y="21.163" transform="matrix(-0.3826 0.9239 -0.9239 -0.3826 46.1212 19.5068)" fill="#FFFFFF" width="10.001" height="8.001"/>
-	
-		<rect x="32.691" y="18.35" transform="matrix(-0.3827 0.9239 -0.9239 -0.3827 72.0723 -3.4565)" fill="#FFFFFF" width="9" height="8"/>
-	
-		<rect x="24.376" y="14.906" transform="matrix(-0.3826 0.9239 -0.9239 -0.3826 57.3927 -0.5383)" fill="#FFFFFF" width="9" height="8.001"/>
-	
-		<rect x="16.061" y="11.462" transform="matrix(-0.3827 0.9239 -0.9239 -0.3827 42.7144 2.3832)" fill="#FFFFFF" width="9" height="7.999"/>
-	<rect x="38.913" y="14.193" fill="#FFFFFF" width="0" height="8"/>
-	<rect x="30.598" y="10.748" fill="#FFFFFF" width="0" height="8.001"/>
-	<rect x="22.283" y="7.305" fill="#FFFFFF" width="0" height="7.999"/>
-	<line fill="#FFFFFF" x1="26.744" y1="10.987" x2="19.353" y2="7.926"/>
-</g>
-<g>
-	<g>
-		<path d="M40.76,13.709l-2.772,1.147c-1.894-4.571-6.312-7.713-11.254-8l0.173-2.994C32.99,4.216,38.428,8.081,40.76,13.709z"/>
-		<g>
-			<polygon points="28.74,9.868 20.444,6.442 27.559,0.971 			"/>
+		<g class="ColorScheme-Background" fill="currentColor">
+		<rect x="28.174" y="28.05" transform="matrix(-0.3826 0.9239 -0.9239 -0.3826 75.4785 13.6662)" width="9.999" height="8.001"/>
+		<rect x="19.858" y="24.607" transform="matrix(-0.3827 0.9239 -0.9239 -0.3827 60.7999 16.589)" width="10" height="7.999"/>
+		<rect x="11.543" y="21.163" transform="matrix(-0.3826 0.9239 -0.9239 -0.3826 46.1212 19.5068)" width="10.001" height="8.001"/>
+		<rect x="32.691" y="18.35" transform="matrix(-0.3827 0.9239 -0.9239 -0.3827 72.0723 -3.4565)" width="9" height="8"/>
+		<rect x="24.376" y="14.906" transform="matrix(-0.3826 0.9239 -0.9239 -0.3826 57.3927 -0.5383)" width="9" height="8.001"/>
+		<rect x="16.061" y="11.462" transform="matrix(-0.3827 0.9239 -0.9239 -0.3827 42.7144 2.3832)" width="9" height="7.999"/>
+		<line x1="26.744" y1="10.987" x2="19.353" y2="7.926"/>
 		</g>
-	</g>
-	<g>
-		<path d="M22.359,42.34c-6.084-0.354-11.522-4.219-13.853-9.846l2.771-1.148c1.894,4.572,6.312,7.711,11.256,7.998L22.359,42.34z"
-			/>
-		<g>
-			<polygon points="20.525,36.332 28.82,39.76 21.706,45.23 			"/>
-		</g>
-	</g>
+</g>
+<g class="ColorScheme-Text" fill="currentColor">
+	<path d="M40.76,13.709l-2.772,1.147c-1.894-4.571-6.312-7.713-11.254-8l0.173-2.994C32.99,4.216,38.428,8.081,40.76,13.709z"/>
+	<polygon points="28.74,9.868 20.444,6.442 27.559,0.971 			"/>
+	<path d="M22.359,42.34c-6.084-0.354-11.522-4.219-13.853-9.846l2.771-1.148c1.894,4.572,6.312,7.711,11.256,7.998L22.359,42.34z"/>
+	<polygon points="20.525,36.332 28.82,39.76 21.706,45.23 			"/>
 </g>
 </svg>
diff --git a/Orange/widgets/data/icons/Unique.svg b/Orange/widgets/data/icons/Unique.svg
index 1f71be54610..fdea5be1d11 100644
--- a/Orange/widgets/data/icons/Unique.svg
+++ b/Orange/widgets/data/icons/Unique.svg
@@ -1 +1,16 @@
-<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48"><defs><style>.cls-1{fill:#b3b3b3;}.cls-2{fill:gray;}.cls-3{fill:#666;}.cls-4{fill:#333;stroke:#333;stroke-linecap:round;stroke-linejoin:round;stroke-width:2px;}</style></defs><circle id="path4169" class="cls-1" cx="29.08" cy="26.09" r="4.26"/><circle id="path4171" class="cls-2" cx="18.46" cy="30.36" r="3.34"/><circle id="path4173" class="cls-3" cx="24.82" cy="40.11" r="5.29"/><polygon class="cls-4" points="12.81 2.6 35.19 2.6 26.39 12.01 26.46 18.63 21.61 21.43 21.61 12.01 12.81 2.6"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<circle class="ColorScheme-Background" fill="currentColor" cx="29.08" cy="26.09" r="4.26"/>
+<circle class="ColorScheme-Text" fill="currentColor" opacity="0.4" cx="29.08" cy="26.09" r="4.26"/>
+<circle class="ColorScheme-Background" fill="currentColor" cx="18.46" cy="30.36" r="3.34"/>
+<circle class="ColorScheme-Text" fill="currentColor" opacity="0.6" cx="18.46" cy="30.36" r="3.34"/>
+<circle class="ColorScheme-Background" fill="currentColor" cx="24.82" cy="40.11" r="5.29"/>
+<circle class="ColorScheme-Text" fill="currentColor" opacity="0.7" cx="24.82" cy="40.11" r="5.29"/>
+<polygon class="ColorScheme-Text" fill="currentColor" points="12.81 2.6 35.19 2.6 26.39 12.01 26.46 18.63 21.61 21.43 21.61 12.01 12.81 2.6"/>
+</svg>
diff --git a/Orange/widgets/visualize/icons/BarPlot.svg b/Orange/widgets/visualize/icons/BarPlot.svg
index b9f8f4ee2cd..84965af57e6 100644
--- a/Orange/widgets/visualize/icons/BarPlot.svg
+++ b/Orange/widgets/visualize/icons/BarPlot.svg
@@ -2,17 +2,23 @@
 <!-- Generator: Adobe Illustrator 22.0.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 viewBox="0 0 48 48" style="enable-background:new 0 0 48 48;" xml:space="preserve">
-<style type="text/css">
-	.st3{fill:#B2B2B2;}
-	.st10{fill:none;stroke:#333333;stroke-width:2;stroke-linejoin:round;stroke-miterlimit:10;}
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Disabled-Text { color: #666; }
+.ColorScheme-Background { color: #fff; }
 </style>
+</defs>
 <g>
-	<polygon class="st3" points="8.5,40 8.5,6 6.5,6 6.5,40 6.5,40 6.5,42 6.5,42 8.5,42 42.5,42 42.5,40 	"/>
-    <rect x="10.5" y="17" fill="#333333" width="5" height="22"/>
-	<rect x="16.5" y="30" fill="#333333" width="5" height="9"/>
-	<rect x="22.5" y="21" fill="#333333" width="5" height="18"/>
-	<rect x="28.5" y="12" fill="#333333" width="5" height="27"/>
-	<rect x="34.5" y="25" fill="#333333" width="5" height="14"/>
+	<polygon class="ColorScheme-Disabled-Text" fill="currentColor" points="8.5,40 8.5,6 6.5,6 6.5,40 6.5,40 6.5,42 6.5,42 8.5,42 42.5,42 42.5,40 	"/>
+	<g class="ColorScheme-Text" fill="currentColor">
+    <rect x="10.5" y="17" width="5" height="22"/>
+	<rect x="16.5" y="30" width="5" height="9"/>
+	<rect x="22.5" y="21" width="5" height="18"/>
+	<rect x="28.5" y="12" width="5" height="27"/>
+	<rect x="34.5" y="25" width="5" height="14"/>
+	</g>
 </g>
 </svg>
 
diff --git a/Orange/widgets/visualize/icons/BoxPlot.svg b/Orange/widgets/visualize/icons/BoxPlot.svg
index 76658aef794..ea139f16852 100644
--- a/Orange/widgets/visualize/icons/BoxPlot.svg
+++ b/Orange/widgets/visualize/icons/BoxPlot.svg
@@ -3,16 +3,24 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<g>
-	<path fill="#666666" d="M37.5,23.5v-2h-10v2h4v4h-4v5v2v3h4v3h-4v2h10v-2h-4v-3h4v-3v-2v-5h-4v-4H37.5z M36.5,36.5h-8v-2h8V36.5z
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Disabled-Text { color: #666; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Text" fill="currentColor">
+	<path d="M37.5,23.5v-2h-10v2h4v4h-4v5v2v3h4v3h-4v2h10v-2h-4v-3h4v-3v-2v-5h-4v-4H37.5z M36.5,36.5h-8v-2h8V36.5z
 		 M36.5,28.5v4h-8v-4H36.5z"/>
-	<polygon fill="#666666" points="18.5,5.5 16.5,5.5 16.5,3.5 14.5,3.5 14.5,5.5 12.5,5.5 12.5,7.5 14.5,7.5 14.5,9.5 16.5,9.5 
+	<polygon points="18.5,5.5 16.5,5.5 16.5,3.5 14.5,3.5 14.5,5.5 12.5,5.5 12.5,7.5 14.5,7.5 14.5,9.5 16.5,9.5
 		16.5,7.5 18.5,7.5 	"/>
-	<polygon fill="#666666" points="35.5,6.5 33.5,6.5 33.5,4.5 31.5,4.5 31.5,6.5 29.5,6.5 29.5,8.5 31.5,8.5 31.5,10.5 33.5,10.5 
+	<polygon points="35.5,6.5 33.5,6.5 33.5,4.5 31.5,4.5 31.5,6.5 29.5,6.5 29.5,8.5 31.5,8.5 31.5,10.5 33.5,10.5
 		33.5,8.5 35.5,8.5 	"/>
-	<polygon fill="#666666" points="35.5,14.5 33.5,14.5 33.5,12.5 31.5,12.5 31.5,14.5 29.5,14.5 29.5,16.5 31.5,16.5 31.5,18.5 
+	<polygon points="35.5,14.5 33.5,14.5 33.5,12.5 31.5,12.5 31.5,14.5 29.5,14.5 29.5,16.5 31.5,16.5 31.5,18.5
 		33.5,18.5 33.5,16.5 35.5,16.5 	"/>
-	<path fill="#666666" d="M20.5,13.5v-2h-10v2h4v7h-4v17h4v5h-4v2h10v-2h-4v-5h4v-17h-4v-7H20.5z M19.5,36.5h-8v-4h8V36.5z
+	<path d="M20.5,13.5v-2h-10v2h4v7h-4v17h4v5h-4v2h10v-2h-4v-5h4v-17h-4v-7H20.5z M19.5,36.5h-8v-4h8V36.5z
 		 M19.5,21.5v9h-8v-9H19.5z"/>
 </g>
 </svg>
diff --git a/Orange/widgets/visualize/icons/Distribution.svg b/Orange/widgets/visualize/icons/Distribution.svg
index 8e57e0a65bf..ef0fef112ea 100644
--- a/Orange/widgets/visualize/icons/Distribution.svg
+++ b/Orange/widgets/visualize/icons/Distribution.svg
@@ -3,10 +3,17 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<g>
-	<rect x="6.5" y="15" fill="#333333" width="8.001" height="23"/>
-	<rect x="15.5" y="10" fill="#333333" width="8.001" height="28"/>
-	<rect x="24.499" y="19" fill="#333333" width="8.001" height="19"/>
-	<rect x="33.5" y="28" fill="#333333" width="8.001" height="10"/>
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Text" fill="currentColor">
+	<rect x="6.5" y="15" width="8.001" height="23"/>
+	<rect x="15.5" y="10" width="8.001" height="28"/>
+	<rect x="24.499" y="19" width="8.001" height="19"/>
+	<rect x="33.5" y="28" width="8.001" height="10"/>
 </g>
 </svg>
diff --git a/Orange/widgets/visualize/icons/Freeviz.svg b/Orange/widgets/visualize/icons/Freeviz.svg
index a526f35eccc..a9fba2b789b 100644
--- a/Orange/widgets/visualize/icons/Freeviz.svg
+++ b/Orange/widgets/visualize/icons/Freeviz.svg
@@ -2,6 +2,14 @@
 <!-- Generator: Adobe Illustrator 23.0.4, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 viewBox="0 0 48 48" style="enable-background:new 0 0 48 48;" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Disabled-Text { color: #666; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <style type="text/css">
 	.st0{fill:none;stroke:#B2B2B2;stroke-width:2;stroke-miterlimit:10;}
 	.st1{fill:#989898;}
@@ -52,27 +60,21 @@
 	</g>
 	<g>
 		<g>
-			<g>
-				<line class="st2" x1="32" y1="4" x2="42.5" y2="10.4"/>
-				<g>
-					<polygon class="st3" points="40.2,12.5 46.1,12.6 43.3,7.4 					"/>
-				</g>
+			<g class="ColorScheme-Text">
+				<line style="fill:none;stroke:currentColor;stroke-width:2;stroke-miterlimit:10" x1="32" y1="4" x2="42.5" y2="10.4"/>
+				<polygon style="fill:currentColor" points="40.2,12.5 46.1,12.6 43.3,7.4 					"/>
 			</g>
 		</g>
 		<g>
-			<g>
-				<line class="st2" x1="32.3" y1="42.4" x2="20.1" y2="42.4"/>
-				<g>
-					<polygon class="st3" points="20.9,39.5 15.8,42.4 20.9,45.4 					"/>
-				</g>
+			<g class="ColorScheme-Text">
+				<line style="fill:none;stroke:currentColor;stroke-width:2;stroke-miterlimit:10" x1="32.3" y1="42.4" x2="20.1" y2="42.4"/>
+				<polygon style="fill:currentColor" points="20.9,39.5 15.8,42.4 20.9,45.4 					"/>
 			</g>
 		</g>
 		<g>
-			<g>
-				<line class="st2" x1="2.4" y1="11.2" x2="12.8" y2="4.8"/>
-				<g>
-					<polygon class="st3" points="13.6,7.8 16.5,2.6 10.5,2.7 					"/>
-				</g>
+			<g class="ColorScheme-Text">
+				<line style="fill:none;stroke:currentColor;stroke-width:2;stroke-miterlimit:10" x1="2.4" y1="11.2" x2="12.8" y2="4.8"/>
+				<polygon style="fill:currentColor" points="13.6,7.8 16.5,2.6 10.5,2.7 					"/>
 			</g>
 		</g>
 	</g>
diff --git a/Orange/widgets/visualize/icons/LinePlot.svg b/Orange/widgets/visualize/icons/LinePlot.svg
index c4243e28fef..a3d36cce1b8 100644
--- a/Orange/widgets/visualize/icons/LinePlot.svg
+++ b/Orange/widgets/visualize/icons/LinePlot.svg
@@ -2,22 +2,19 @@
 <!-- Generator: Adobe Illustrator 22.0.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 viewBox="0 0 48 48" style="enable-background:new 0 0 48 48;" xml:space="preserve">
-<style type="text/css">
-	.st0{fill:#FFFFFF;}
-	.st1{fill:#333333;}
-	.st2{fill:none;stroke:#333333;stroke-width:2;stroke-miterlimit:10;}
-	.st3{fill:#B2B2B2;}
-	.st4{fill:#F0F0F0;}
-	.st5{fill:#666666;}
-	.st6{fill:none;stroke:#333333;stroke-miterlimit:10;}
-	.st7{fill:none;stroke:#333333;stroke-width:3;stroke-miterlimit:10;}
-	.st8{fill:none;stroke:#333333;stroke-width:2;stroke-linecap:round;stroke-miterlimit:10;}
-	.st9{fill:none;stroke:#C6C6C6;stroke-width:3;stroke-miterlimit:10;}
-	.st10{fill:none;stroke:#333333;stroke-width:2;stroke-linejoin:round;stroke-miterlimit:10;}
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Disabled-Text { color: #666; }
+.ColorScheme-Background { color: #fff; }
 </style>
+</defs>
+<g class="ColorScheme-Text" fill="none" stroke="currentColor" stroke-width="2" stroke-linejoin="round" stroke-miterlimit="10">
+	<polyline points="7.5,33.1 15.8,33.1 35.3,14.9 42.5,14.9 	"/>
+	<polyline points="7.5,14.9 15.8,14.9 35.3,33.1 42.5,33.1 	"/>
+</g>
 <g>
-	<polyline class="st10" points="7.5,33.1 15.8,33.1 35.3,14.9 42.5,14.9 	"/>
-	<polyline class="st10" points="7.5,14.9 15.8,14.9 35.3,33.1 42.5,33.1 	"/>
-	<polygon class="st3" points="8.5,40 8.5,6 6.5,6 6.5,40 6.5,40 6.5,42 6.5,42 8.5,42 42.5,42 42.5,40 	"/>
+	<polygon class="ColorScheme-Disabled-Text" stroke="none" fill="currentColor" points="8.5,40 8.5,6 6.5,6 6.5,40 6.5,40 6.5,42 6.5,42 8.5,42 42.5,42 42.5,40 	"/>
 </g>
 </svg>
diff --git a/Orange/widgets/visualize/icons/MosaicDisplay.svg b/Orange/widgets/visualize/icons/MosaicDisplay.svg
index 8646fcfe854..aa1cce201c8 100644
--- a/Orange/widgets/visualize/icons/MosaicDisplay.svg
+++ b/Orange/widgets/visualize/icons/MosaicDisplay.svg
@@ -3,9 +3,18 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<rect x="7" y="19" fill="#333333" width="25" height="22"/>
-<rect x="34" y="27" fill="#333333" width="7" height="9"/>
-<rect x="34" y="7" fill="#333333" width="7" height="18"/>
-<rect x="34" y="38" fill="#333333" width="7" height="3"/>
-<rect x="7" y="7" fill="#333333" width="25" height="10"/>
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Text" fill="currentColor">
+<rect x="7" y="19" width="25" height="22"/>
+<rect x="34" y="27" width="7" height="9"/>
+<rect x="34" y="7" width="7" height="18"/>
+<rect x="34" y="38" width="7" height="3"/>
+<rect x="7" y="7" width="25" height="10"/>
+</g>
 </svg>
diff --git a/Orange/widgets/visualize/icons/ScatterPlot.svg b/Orange/widgets/visualize/icons/ScatterPlot.svg
index 884e1a9db15..74e421a9000 100644
--- a/Orange/widgets/visualize/icons/ScatterPlot.svg
+++ b/Orange/widgets/visualize/icons/ScatterPlot.svg
@@ -3,29 +3,23 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
-<g>
-	<circle fill="#333333" cx="29" cy="27.001" r="2.999"/>
-</g>
-<g>
-	<circle fill="#333333" cx="29" cy="17.003" r="2.999"/>
-</g>
-<g>
-	<circle fill="#333333" cx="18" cy="29.002" r="2.999"/>
-</g>
-<g>
-	<circle fill="#333333" cx="23" cy="34.002" r="2.999"/>
-</g>
-<g>
-	<circle fill="#333333" cx="13" cy="35.002" r="2.999"/>
-</g>
-<g>
-	<circle fill="#333333" cx="21" cy="21.002" r="2.999"/>
-</g>
-<g>
-	<circle fill="#333333" cx="38" cy="12.002" r="2.999"/>
-</g>
-<g>
-	<circle fill="#333333" cx="37" cy="21.003" r="2.999"/>
-</g>
-<polygon fill="#B2B2B2" points="8,40 8,6 6,6 6,40 6,40 6,42 6,42 8,42 42,42 42,40 "/>
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Disabled-Text { color: #666; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
+<g class="ColorScheme-Text" fill="currentColor">
+	<circle cx="29" cy="27.001" r="2.999"/>
+	<circle cx="29" cy="17.003" r="2.999"/>
+	<circle cx="18" cy="29.002" r="2.999"/>
+	<circle cx="23" cy="34.002" r="2.999"/>
+	<circle cx="13" cy="35.002" r="2.999"/>
+	<circle cx="21" cy="21.002" r="2.999"/>
+	<circle cx="38" cy="12.002" r="2.999"/>
+	<circle cx="37" cy="21.003" r="2.999"/>
+</g>
+	<polygon class="ColorScheme-Disabled-Text" fill="currentColor" points="8,40 8,6 6,6 6,40 6,40 6,42 6,42 8,42 42,42 42,40 "/>
 </svg>
diff --git a/Orange/widgets/visualize/icons/SieveDiagram.svg b/Orange/widgets/visualize/icons/SieveDiagram.svg
index fc83de4b8de..69bc418f2fc 100644
--- a/Orange/widgets/visualize/icons/SieveDiagram.svg
+++ b/Orange/widgets/visualize/icons/SieveDiagram.svg
@@ -3,56 +3,72 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Disabled-Text { color: #666; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <g>
-	<rect x="17" y="38" fill="#666666" width="4" height="3"/>
-	<rect x="17" y="33" fill="#666666" width="4" height="4"/>
-	<rect x="7" y="38" fill="#666666" width="4" height="3"/>
-	<rect x="17" y="28" fill="#666666" width="4" height="4"/>
-	<rect x="12" y="38" fill="#666666" width="4" height="3"/>
-	<rect x="12" y="28" fill="#666666" width="4" height="4"/>
-	<rect x="7" y="28" fill="#666666" width="4" height="4"/>
-	<rect x="12" y="33" fill="#666666" width="4" height="4"/>
-	<rect x="7" y="33" fill="#666666" width="4" height="4"/>
-	<rect x="27" y="12" fill="#333333" width="4" height="4"/>
-	<rect x="22" y="12" fill="#333333" width="4" height="4"/>
-	<rect x="32" y="12" fill="#333333" width="4" height="4"/>
-	<rect x="27" y="17" fill="#333333" width="4" height="4"/>
-	<rect x="22" y="17" fill="#333333" width="4" height="4"/>
-	<rect x="37" y="17" fill="#333333" width="4" height="4"/>
-	<rect x="37" y="12" fill="#333333" width="4" height="4"/>
-	<rect x="32" y="17" fill="#333333" width="4" height="4"/>
-	<rect x="22" y="28" fill="#666666" width="4" height="4"/>
-	<rect x="27" y="38" fill="#666666" width="4" height="3"/>
-	<rect x="22" y="33" fill="#666666" width="4" height="4"/>
-	<rect x="37" y="33" fill="#666666" width="4" height="4"/>
-	<rect x="22" y="38" fill="#666666" width="4" height="3"/>
-	<rect x="37" y="38" fill="#666666" width="4" height="3"/>
-	<rect x="32" y="38" fill="#666666" width="4" height="3"/>
-	<rect x="27" y="33" fill="#666666" width="4" height="4"/>
-	<rect x="27" y="28" fill="#666666" width="4" height="4"/>
-	<rect x="32" y="33" fill="#666666" width="4" height="4"/>
-	<rect x="32" y="28" fill="#666666" width="4" height="4"/>
-	<rect x="27" y="23" fill="#666666" width="4" height="4"/>
-	<rect x="22" y="23" fill="#666666" width="4" height="4"/>
-	<rect x="32" y="23" fill="#666666" width="4" height="4"/>
-	<rect x="37" y="28" fill="#666666" width="4" height="4"/>
-	<rect x="37" y="23" fill="#666666" width="4" height="4"/>
-	<rect x="27" y="7" fill="#333333" width="4" height="3"/>
-	<rect x="22" y="7" fill="#333333" width="4" height="3"/>
-	<rect x="37" y="7" fill="#333333" width="4" height="3"/>
-	<rect x="32" y="7" fill="#333333" width="4" height="3"/>
-	<rect x="7" y="22" fill="#333333" width="4" height="4"/>
-	<rect x="17" y="22" fill="#333333" width="4" height="4"/>
-	<rect x="12" y="22" fill="#333333" width="4" height="4"/>
-	<rect x="17" y="17" fill="#333333" width="4" height="4"/>
-	<rect x="17" y="12" fill="#333333" width="4" height="4"/>
-	<rect x="7" y="17" fill="#333333" width="4" height="4"/>
-	<rect x="12" y="17" fill="#333333" width="4" height="4"/>
-	<rect x="17" y="7" fill="#333333" width="4" height="4"/>
-	<rect x="12" y="7" fill="#333333" width="4" height="4"/>
-	<rect x="7" y="7" fill="#333333" width="4" height="4"/>
-	<rect x="7" y="12" fill="#333333" width="4" height="4"/>
-	<rect x="12" y="12" fill="#333333" width="4" height="4"/>
+	<g class="ColorScheme-Disabled-Text" style="fill:currentColor">
+	<rect x="17" y="38" width="4" height="3"/>
+	<rect x="17" y="33" width="4" height="4"/>
+	<rect x="7" y="38" width="4" height="3"/>
+	<rect x="17" y="28" width="4" height="4"/>
+	<rect x="12" y="38" width="4" height="3"/>
+	<rect x="12" y="28" width="4" height="4"/>
+	<rect x="7" y="28" width="4" height="4"/>
+	<rect x="12" y="33" width="4" height="4"/>
+	<rect x="7" y="33" width="4" height="4"/>
+	</g>
+	<g class="ColorScheme-Text" style="fill:currentColor">
+	<rect x="27" y="12" width="4" height="4"/>
+	<rect x="22" y="12" width="4" height="4"/>
+	<rect x="32" y="12" width="4" height="4"/>
+	<rect x="27" y="17" width="4" height="4"/>
+	<rect x="22" y="17" width="4" height="4"/>
+	<rect x="37" y="17" width="4" height="4"/>
+	<rect x="37" y="12" width="4" height="4"/>
+	<rect x="32" y="17" width="4" height="4"/>
+	</g>
+	<g class="ColorScheme-Disabled-Text" style="fill:currentColor">
+	<rect x="22" y="28" width="4" height="4"/>
+	<rect x="27" y="38" width="4" height="3"/>
+	<rect x="22" y="33" width="4" height="4"/>
+	<rect x="37" y="33" width="4" height="4"/>
+	<rect x="22" y="38" width="4" height="3"/>
+	<rect x="37" y="38" width="4" height="3"/>
+	<rect x="32" y="38" width="4" height="3"/>
+	<rect x="27" y="33" width="4" height="4"/>
+	<rect x="27" y="28" width="4" height="4"/>
+	<rect x="32" y="33" width="4" height="4"/>
+	<rect x="32" y="28" width="4" height="4"/>
+	<rect x="27" y="23" width="4" height="4"/>
+	<rect x="22" y="23" width="4" height="4"/>
+	<rect x="32" y="23" width="4" height="4"/>
+	<rect x="37" y="28" width="4" height="4"/>
+	<rect x="37" y="23" width="4" height="4"/>
+	</g>
+	<g class="ColorScheme-Text" style="fill:currentColor">
+	<rect x="27" y="7" width="4" height="3"/>
+	<rect x="22" y="7" width="4" height="3"/>
+	<rect x="37" y="7" width="4" height="3"/>
+	<rect x="32" y="7" width="4" height="3"/>
+	<rect x="7" y="22" width="4" height="4"/>
+	<rect x="17" y="22" width="4" height="4"/>
+	<rect x="12" y="22" width="4" height="4"/>
+	<rect x="17" y="17" width="4" height="4"/>
+	<rect x="17" y="12" width="4" height="4"/>
+	<rect x="7" y="17" width="4" height="4"/>
+	<rect x="12" y="17" width="4" height="4"/>
+	<rect x="17" y="7" width="4" height="4"/>
+	<rect x="12" y="7" width="4" height="4"/>
+	<rect x="7" y="7" width="4" height="4"/>
+	<rect x="7" y="12" width="4" height="4"/>
+	<rect x="12" y="12" width="4" height="4"/>
+	</g>
 	<rect x="11" y="28" fill="#989898" width="1" height="4"/>
 	<rect x="11" y="33" fill="#989898" width="1" height="4"/>
 	<rect x="11" y="38" fill="#989898" width="1" height="3"/>
diff --git a/Orange/widgets/visualize/icons/TreeViewer.svg b/Orange/widgets/visualize/icons/TreeViewer.svg
index 778e8857053..173a6258b30 100644
--- a/Orange/widgets/visualize/icons/TreeViewer.svg
+++ b/Orange/widgets/visualize/icons/TreeViewer.svg
@@ -3,24 +3,32 @@
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 width="26px" height="26px" viewBox="0 0 26 26" enable-background="new 0 0 26 26" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+.ColorScheme-Disabled-Text { color: #666; }
+</style>
+</defs>
 <g>
-	<g>
-		<polygon fill="#666666" points="20.985,6.971 19.729,6.971 19.729,4.368 12.186,3.208 4.643,4.368 4.643,6.971 3.386,6.971 
+	<g class="ColorScheme-Disabled-Text" fill="currentColor">
+		<polygon points="20.985,6.971 19.729,6.971 19.729,4.368 12.186,3.208 4.643,4.368 4.643,6.971 3.386,6.971
 			3.386,3.289 12.186,1.936 20.985,3.289 		"/>
+		<polygon points="20,13.99 20,18 21,18 21,13.99 20.5,13.893 		"/>
+		<polygon points="20,10 20,12.718 20.5,12.621 21,12.718 21,10 		"/>
+		<polygon points="12,13.975 12,18 13,18 13,15.054 20,13.99 20,12.718 		"/>
+		<polygon points="21,12.718 21,13.99 23,14.377 23,13.105 		"/>
+		<polygon points="19.729,12.718 19.729,13.99 20.357,13.893 20.985,13.99 20.985,12.718 20.357,12.621 		"/>
+		<rect x="12" y="1" width="1" height="7"/>
+		<rect x="12" y="19" width="1" height="4"/>
 	</g>
-	<g>
-		<polygon fill="#666666" points="20,13.99 20,18 21,18 21,13.99 20.5,13.893 		"/>
-		<polygon fill="#666666" points="20,10 20,12.718 20.5,12.621 21,12.718 21,10 		"/>
-		<polygon fill="#666666" points="12,13.975 12,18 13,18 13,15.054 20,13.99 20,12.718 		"/>
-		<polygon fill="#666666" points="21,12.718 21,13.99 23,14.377 23,13.105 		"/>
-		<polygon fill="#666666" points="19.729,12.718 19.729,13.99 20.357,13.893 20.985,13.99 20.985,12.718 20.357,12.621 		"/>
-		<rect x="12" y="1" fill="#666666" width="1" height="7"/>
-		<rect x="12" y="19" fill="#666666" width="1" height="4"/>
+	<g class="ColorScheme-Text" fill="currentColor">
+		<rect x="1" y="6" width="6" height="5"/>
+		<rect x="10" y="7" width="5" height="5"/>
+		<rect x="18" y="18" width="5" height="5"/>
+		<circle cx="12.186" cy="18.914" r="2.514"/>
+		<circle cx="20.357" cy="8.229" r="2.514"/>
 	</g>
-	<rect x="1" y="6" fill="#333333" width="6" height="5"/>
-	<rect x="10" y="7" fill="#333333" width="5" height="5"/>
-	<rect x="18" y="18" fill="#333333" width="5" height="5"/>
-	<circle fill="#333333" cx="12.186" cy="18.914" r="2.514"/>
-	<circle fill="#333333" cx="20.357" cy="8.229" r="2.514"/>
 </g>
 </svg>
\ No newline at end of file
diff --git a/Orange/widgets/visualize/icons/ViolinPlot.svg b/Orange/widgets/visualize/icons/ViolinPlot.svg
index 6724cc59ad0..3a7a4558cc0 100644
--- a/Orange/widgets/visualize/icons/ViolinPlot.svg
+++ b/Orange/widgets/visualize/icons/ViolinPlot.svg
@@ -2,11 +2,18 @@
 <!-- Generator: Adobe Illustrator 23.0.4, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 viewBox="0 0 48 48" style="enable-background:new 0 0 48 48;" xml:space="preserve">
+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
 <style type="text/css">
-	.st0{fill:#333333;stroke:#333333;stroke-width:0.75;stroke-linecap:round;stroke-linejoin:round;}
+	.st0{stroke-width:0.75;stroke-linecap:round;stroke-linejoin:round;}
 </style>
 <title>ViolinPlot</title>
-<g id="Draw_Layer">
+<g class="ColorScheme-Text" fill="currentColor" stroke="currentColor">
 	<path class="st0" d="M33.2,3.8L33.2,3.8v40c0,0.1,0,0.2,0,0.3c0.1-2.2,0.5-4.3,1.2-6.3s1.7-4,2.3-6.1c0.3-1.4,0.8-2.8,1.5-4.1
 		c1.5-2.3,4.3-2.7,5.9-4.9c0.2-0.2,0.3-0.5,0.3-0.8c0-0.5-0.2-0.9-0.5-1.2c-1-1.1-2.2-2-3.4-2.8c-1.8-1.3-3.5-2.8-5-4.5
 		c-0.5-0.5-1-1.1-1.3-1.8c-1.1-2.2-0.8-5.1-1-7.6l0,0V3.9l0,0V3.8L33.2,3.8L33.2,3.8z"/>