I think is better treating the style of the wiki like a skin of only one person, we making suggestions but leaving for you the decission Scampbll. The scheme needs some logical design which can be better not being edited by us.
For me, the logic is using the same or near tones for all the big areas. It can be all grey dark colors or clear colors like in this forum. Nothing which calls our attention. And reserving the color uniform tones only for small and clickable areas, and that would call our attention when looking for clickable elements.
How it is now, the background is blue and border is yellow, my vote goes for a grey background nearer or same than the general background, and a lighter grey border. Maintaining the style with the other boxes, and not calling our attention something which is in front of our eyes.
Another thing which i think could be an improvement, and from my experience skinning is i think we are dark side or clear side guys. So a button to switching between both sides could be welcomed. But i'm not asking for it, if someone likes the idea just comment here