Yep, there have been a lot of threads about having a dark theme--I'm not sure what the problem is, because most browsers have at least optional add-ons if not built-in ones where you can turn things as dark as you like.  I use Firefox and their dark mode works just fine.  If bitcointalk never offers its own option, I'll be cool with that (though I think it should anyway).

More of an issue is making a mobile-friendly version of the forum, but that's another story.  Whenever this new forum software rolls out--probably in the next century--I'm sure both problems will be fixed and everyone will be happy.  Bitcoin will probably be trading at $1 million at that point.