diff --git a/platform/platform-api/src/com/intellij/ui/ColoredTreeCellRenderer.java b/platform/platform-api/src/com/intellij/ui/ColoredTreeCellRenderer.java
index 9ce2b4996769..2f83987452ba 100644
--- a/platform/platform-api/src/com/intellij/ui/ColoredTreeCellRenderer.java
+++ b/platform/platform-api/src/com/intellij/ui/ColoredTreeCellRenderer.java
@@ -91,7 +91,7 @@ public abstract class ColoredTreeCellRenderer extends SimpleColoredComponent imp
       setIcon(null);
     }
 
-    if (UIUtil.isUnderNimbusLookAndFeel() && selected && hasFocus) {
+    if (UIUtil.isUnderGTKLookAndFeel() || UIUtil.isUnderNimbusLookAndFeel() && selected && hasFocus) {
       super.setOpaque(false);  // avoid erasing Nimbus focus frame
       super.setIconOpaque(false);
     }
diff --git a/platform/util/src/com/intellij/util/ui/UIUtil.java b/platform/util/src/com/intellij/util/ui/UIUtil.java
index fd1e75c8c90f..759bca922824 100644
--- a/platform/util/src/com/intellij/util/ui/UIUtil.java
+++ b/platform/util/src/com/intellij/util/ui/UIUtil.java
@@ -577,6 +577,11 @@ public class UIUtil {
     return UIManager.getLookAndFeel().getName().contains("Mac OS X");
   }
 
+  @SuppressWarnings({"HardCodedStringLiteral"})
+  public static boolean isUnderGTKLookAndFeel() {
+    return UIManager.getLookAndFeel().getName().contains("GTK");
+  }
+
   public static boolean isFullRowSelectionLAF() {
     return isUnderNimbusLookAndFeel() || isUnderQuaquaLookAndFeel();
   }