Yeah the dark themes don't look too good, time to search for more of them.
I like Minimalist on the front page of the forum but it's not too good when it comes to the text parts, yeah. Headline is better there, but I don't think I quite like its front page forum as much.
Silent Wave is pretty nice, I think it has a good combination of dark and light. The gray borders might be a bit too heavy, but I think it's something you can get used to.
I'll keep looking.