
When we mess with a window actor's visibility from the shell side (yes, I know :-( ), we should at least restore the proper visibility when we're done with it ... https://bugzilla.gnome.org/show_bug.cgi?id=771536
Intro ===== Fix me. Env Vars ======== MUTTER_DISABLE_MIPMAPS - set to disable use of mipmaped windows.