Hi!I'd like to ask for a freeze break for a very visible and poorly timed fix, but I believe we should go through with it for 3.10.1. This totally slipped through and currently we ship a pink(ish) lock screen background as a default.
https://bugzilla.gnome.org/show_bug.cgi?id=709425
Unfortunately the wallpapers are translated so it does add a string :(