I know, right? I went crazy with them for a while, but then I got frustrated with the font colour issues (Couldn’t see some posts by other people unless I highlighted them) so I gave up on them. It’s a shame, though, kuz themes are awesome!
I haven’t run into issues yet (although the ice cream parlor theme stretches profile pictures in the forum) but I might settle with the dark theme for everyday use; it’s easy on the eyes!