Bugs and whatnot.

First off,
your missing an image file known as arrow_down.gif
blahblahblah/blbahblah/blackevo4/arrow_down.gif/

In other words, this image is broke.

Second,
I'd recommend the myBB plugin "Theme switcher" I'm not sure of it's exact name.. but i can find it if youd like, it basically inputs a small theme changer app to the bottom right corner. Similar to on VB forums. Along with this app, i'd recommend a Lighter theme alternative. Yet, personally i believe a theme isn't as important as the actual site. The site is still new, and things like themes should be added in the future.

Third..
I don't have a third, i will update this thread frequently when i find more bugs or suggestions.

Cant be too light of a theme as the name is "Dark"-Forums

I think the theme is just fine as it is. It's not too dark but dark enough. Looks great. As Purple Muffin said, it is dark forums.