--- nautilus.css	2013-04-29 11:53:24.593795313 +0200
+++ /usr/share/themes/Radiance/gtk-3.0/apps/nautilus.css	2013-04-29 11:53:39.289795369 +0200
@@ -2,6 +2,7 @@
 
 NautilusWindow * {
     -GtkPaned-handle-size: 1;
+    background-color: transparent;
 }
 
 .nautilus-canvas-item {