diff --git a/platform/platform-impl/src/com/intellij/openapi/wm/impl/InternalDecorator.java b/platform/platform-impl/src/com/intellij/openapi/wm/impl/InternalDecorator.java
index 2162782e2132..3c0d740bf5a3 100644
--- a/platform/platform-impl/src/com/intellij/openapi/wm/impl/InternalDecorator.java
+++ b/platform/platform-impl/src/com/intellij/openapi/wm/impl/InternalDecorator.java
@@ -312,9 +312,7 @@ public final class InternalDecorator extends JPanel implements Queryable, DataPr
         doPaintBorder(c, g, x, y, width, height);
       }
       else {
-        g.setColor(UIUtil.getPanelBackground());
-        doPaintBorder(c, g, x, y, width, height);
-        g.setColor(Gray._155);
+        g.setColor(SystemInfo.isMac && UIUtil.isUnderIntelliJLaF() ? Gray.xC9 : Gray._155);
         doPaintBorder(c, g, x, y, width, height);
       }
     }