Fix message box background for GTK+ L&F

java/idea-ui/src/com/intellij/openapi/roots/ui/configuration/ConfigurationErrorsComponent.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2010 JetBrains s.r.o.
+ * Copyright 2000-2011 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -407,7 +407,7 @@ public class ConfigurationErrorsComponent extends JPanel implements Disposable,
       myFakeTextPane.setBorder(BorderFactory.createEmptyBorder(3, 0, 3, 0));
       myText.setOpaque(false);
       if (UIUtil.isUnderNimbusLookAndFeel()) {
-        myText.setBackground(new Color(0, 0, 0, 0));
+        myText.setBackground(UIUtil.TRANSPARENT_COLOR);
       }
 
       myText.setEditable(false);