diff --git a/src/symbol-icon-theme.json b/src/symbol-icon-theme.json
index 3951558..d863d8d 100644
--- a/src/symbol-icon-theme.json
+++ b/src/symbol-icon-theme.json
@@ -1347,6 +1347,10 @@
 		"public": "folder-purple-outline",
 		"source": "folder-orange-code",
 		"src": "folder-orange-code",
+		"test": "folder-red-code",
+		"tests": "folder-red-code",
+		"spec": "folder-red-code",
+		"specs": "folder-red-code",
 		"tools": "folder-utils",
 		"lib": "folder-utils",
 		"doc": "folder-blue",