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index b3ce1c56a8d..529c2c90279 100644
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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
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diff --git a/Orange/widgets/data/icons/Correlations.svg b/Orange/widgets/data/icons/Correlations.svg
index 92ec8ac9174..a5b3da31009 100644
--- a/Orange/widgets/data/icons/Correlations.svg
+++ b/Orange/widgets/data/icons/Correlations.svg
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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"/>
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+<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
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+	<rect x="30" y="23" opacity="0.5" width="10" height="8"/>
+	<rect x="30" y="32" opacity="0.5" width="10" height="8"/>
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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 @@
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 <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"/>
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+	<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
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+	<g class="ColorScheme-Background" fill="currentColor">
+	<rect x="8" y="32" width="10" height="8"/>
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+	<rect x="19" y="32" width="10" height="8"/>
+	<rect x="19" y="23" width="10" height="8"/>
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+	<rect x="30" y="23" width="10" height="8"/>
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+	<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"/>
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 <g>
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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"?>
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 <!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
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+	<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
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 </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"/>
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-	<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"/>
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+		<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>
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+	<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
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+		<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
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+		<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
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+		<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
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+		<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
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+			</g>
+		</g>
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 	<g>
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+		<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
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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 @@
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 <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"
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-			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 	"/>
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-	<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
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-			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
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+		c-0.152-0.56-0.303-1.523-0.354-2.133h-2.793V32.468z"/>
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-					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
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+				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"/>
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+			<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"/>
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+			<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
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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 @@
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 <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>
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+	<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
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+	<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
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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 @@
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 	 width="48px" height="48px" viewBox="0 0 48 48" enable-background="new 0 0 48 48" xml:space="preserve">
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-	<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"/>
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+	<rect x="34.121" y="12.715" width="7.145" height="10.859"/>
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+	<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"/>
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 </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
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+* { color: #333; }
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+.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"/>
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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 @@
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+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
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+.ColorScheme-Background { color: #fff; }
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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 @@
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 <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>
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+	<rect class="ColorScheme-Text" fill="currentColor" x="7" y="7" width="34" height="34"/>
+	<g class="ColorScheme-Background" fill="currentColor">
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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
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diff --git a/Orange/widgets/data/icons/Neighbors.svg b/Orange/widgets/data/icons/Neighbors.svg
index e4a9e8f8ad4..3b9c8c1d697 100644
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index cc4697948c0..3ee81786058 100644
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index d55e4f3ec31..899b7bbfab5 100644
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index b25c7063a75..235ca0a732e 100644
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-	.st1{fill:#333333;}
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+* { color: #333; }
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index f601c9d1ea5..5a7d23ea408 100644
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index d07e240dc87..08f61b86296 100644
--- a/Orange/widgets/data/icons/PurgeDomain.svg
+++ b/Orange/widgets/data/icons/PurgeDomain.svg
@@ -2,16 +2,33 @@
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+* { color: #333; }
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+.ColorScheme-Background { color: #fff; }
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+	<g class="ColorScheme-Text" fill="currentColor">
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+	<path d="M19,34.8,29,24.4,29,29.6,19,40z"/>
+	<path d="m24,40,5-5.2,0,5.2z"/>
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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
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+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
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+	<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
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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 @@
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 <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>
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+		<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"/>
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+		<line stroke="currentColor" stroke-width="2" stroke-miterlimit="10" x1="6.55" y1="27.186" x2="46.146" y2="28.335"/>
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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 @@
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 <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">
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-<rect x="30" y="21" fill="#333333" width="10" height="15"/>
-<rect x="8" y="16" fill="#333333" width="10" height="20"/>
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+<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
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+	<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
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+	<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
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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
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+<defs>
+<style type="text/css" id="current-color-scheme">
+* { color: #333; }
+.ColorScheme-Text { color: #333; }
+.ColorScheme-Background { color: #fff; }
+</style>
+</defs>
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+	<path class="ColorScheme-Background" fill="currentColor" stroke="none" d="M38.271,12.665v24.656
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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
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 	 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>
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+	<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 @@
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 	 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>
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+	<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 @@
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 	 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"/>
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+	<g class="ColorScheme-Text" fill="currentColor">
+		<rect opacity="0.5" x="19" y="14" width="10" height="26"/>
+	</g>
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 <g>
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+	<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
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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 @@
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 	 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>
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+	<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"/>
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+	<rect class="ColorScheme-Text" fill="currentColor" opacity="0.5" x="8" y="23" width="32" height="8"/>
 </g>
 <g>
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+	<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
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index 40dec0ee052..5bb4aaff8ca 100644
--- a/Orange/widgets/data/icons/Table.svg
+++ b/Orange/widgets/data/icons/Table.svg
@@ -1,23 +1,32 @@
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index 8e57e0a65bf..ef0fef112ea 100644
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index a526f35eccc..a9fba2b789b 100644
--- a/Orange/widgets/visualize/icons/Freeviz.svg
+++ b/Orange/widgets/visualize/icons/Freeviz.svg
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index c4243e28fef..a3d36cce1b8 100644
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index 8646fcfe854..aa1cce201c8 100644
--- a/Orange/widgets/visualize/icons/MosaicDisplay.svg
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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
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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
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 	 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; }
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+.ColorScheme-Disabled-Text { color: #666; }
+.ColorScheme-Background { color: #fff; }
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+</defs>
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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
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+.ColorScheme-Background { color: #fff; }
+.ColorScheme-Disabled-Text { color: #666; }
+</style>
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-		<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"/>