Nova theme got damaged during the update and the restore doesn't seem to help. I'll fix it later, until then I switched the default board theme to ProBlack.
Hadn't noticed until ryan brought it up.
I like the ProBlack theme and use it as the default, anyway.
Funny that the one theme that you said that would be okay was the damaged one.
OK, it seems OK now. I'll reset it as the default theme and I'll force everyone to use it (sorry for this, you can select your preferred theme afterwards.)