File appearance-properties-background-page-default.patch of Package gnome-control-center
--- capplets/appearance/data/gnome-appearance-properties.desktop.in.in.orig 2009-09-29 12:57:16.000000000 -0400
+++ capplets/appearance/data/gnome-appearance-properties.desktop.in.in 2009-09-29 12:57:52.000000000 -0400
@@ -1,7 +1,7 @@
[Desktop Entry]
_Name=Appearance
_Comment=Customize the look of the desktop
-Exec=gnome-appearance-properties %F
+Exec=gnome-appearance-properties -p background %F
Icon=preferences-desktop-theme
Terminal=false
Type=Application