Fix black background on panel editor.

Alacarte (and other applications) calls gnome-desktop-item-edit which
in turn will create a PanelDItemEditor which would get "panel" style
due rule matching all classes "*Panel*" panel.rc.

The following patch will override PanelDItemEditor class with
murrine-default style and make it look like other dialogs.


=== modified file 'Human-Murrine-Netbook/gtk-2.0/gtkrc'
--- Human-Murrine-Netbook/gtk-2.0/gtkrc	2009-02-23 12:10:57 +0000
+++ Human-Murrine-Netbook/gtk-2.0/gtkrc	2009-04-15 23:01:33 +0000
@@ -380,3 +380,7 @@
 	}
 }
 widget_class "EShellWindow.GtkVBox.BonoboDock.BonoboDockBand.BonoboDockItem*" style "murrine-evo-new-button-workaround"
+
+# Override panel.rc settings that turns all "*Panel*" classes into "panel"
+# styles as edit dialogs shouldn't get dark background
+class "*PanelDItemEditor*" style "murrine-default"