diff --git a/src/data/items.json b/src/data/items.json
index 6024fc5..3c0f81a 100644
--- a/src/data/items.json
+++ b/src/data/items.json
@@ -379,6 +379,7 @@
     "search-result": "search"
   },
   "folder": "folder",
+  "folderExpanded": "folder-opened",
   "iconDefinitions": {
     "archive": {
       "iconColor": "@gray",
@@ -456,6 +457,10 @@
       "iconColor": "@gray",
       "iconName": "folder"
     },
+    "folder-opened": {
+      "iconColor": "@gray",
+      "iconName": "folder-opened"
+    },
     "font": {
       "iconColor": "@blue",
       "iconName": "text-size"
diff --git a/src/iconmaps/octicons.json b/src/iconmaps/octicons.json
index 0f207a8..a61856c 100644
--- a/src/iconmaps/octicons.json
+++ b/src/iconmaps/octicons.json
@@ -1,3 +1,4 @@
 {
-  "folder": "file-directory"
+  "folder": "file-directory",
+  "folder-opened": "file-directory"
 }
diff --git a/src/themes.js b/src/themes.js
index 57512fb..75ce200 100644
--- a/src/themes.js
+++ b/src/themes.js
@@ -100,7 +100,7 @@ function getIconTheme(themeId) {
 		iconTheme.iconDefinitions[lightIconName] = { fontColor: lightColor };
 	}
 
-	for (const propName of ['file', 'folder']) {
+	for (const propName of ['file', 'folder', 'folderExpanded']) {
 		const iconName = items[propName];
 		const prefixedIconName = prefix(iconName);