Comment 3 for bug 547006

Perhaps, but I haven't knowingly touched the Qt theme myself. Also I've been using upstream Anki since and tooltips were fine there. When I switched back and forth between repo- and upstream Anki the former's tooltips where unreadable and the latter's were fine.

However for whatever reason that changed. I've just tried it again and found both have readable tooltips, i.e. black on yellow. Whatever it was, I can't reproduce the bug anymore and it doesn't look like it was Anki's fault anyway, so I'll close it as invalid for now. Thanks for the reminder Damien.