Messages from the bpy.types.Window class were blacklisted in the message extraction script. This change allows a few new messages to be translated, including at least two which show up in the UI. There are only 12 new messages in the .po files, so even if some never need to be translated, that's not too many. Ref. T43295 Reviewed By: mont29 Differential Revision: https://developer.blender.org/D15628