Seems I was wrong and the arrows are not supposed to change the background.
** Changed in: gnome-control-center (Ubuntu) Status: Triaged => Invalid -- Arrows under background thumbnail only change the thumbnail but not the Gnome background https://bugs.launchpad.net/bugs/440180 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs