That's because nautilus is used as the desktop background in gnome. I don't think this feature will be implemented in Dolphin, but if you really want to, you could file a wishlist request at bugs.kde.org.
** Changed in: dolphin (Ubuntu) Importance: Undecided => Wishlist ** Changed in: dolphin (Ubuntu) Status: New => Won't Fix -- wallpaper in dolphin https://bugs.launchpad.net/bugs/393504 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