I have this problem too. After deleting the lines added to the ubuntu- wallpapers.xml, nothing changed. Even the added wallpaper remains there!
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/934047 Title: Double wallpaper-entries in appearance menu Status in “gnome-control-center” package in Ubuntu: Confirmed Bug description: I've added a wallpaper to the /usr/share/backgrounds folder and added an entry for it in the /usr/share/gnome-background-properties/ubuntu- wallpapers.xml file. Since then, every wallpaper appears twice in the appearance menue. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/934047/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp