User blog comment:Meighan/Update: Admin Dashboard and Editor/@comment-1474707-20111201123616/@comment-1474707-20111201190455

Ah, I see what's happening. In light themed wikis, it darkens the background colour for the bits outside the editing window. ie, on chrisnolan it has cream inside window and dark cream edges (sorry, thought it was white inside). Presumably this is to distinguish between editing window and non-editing part. However on dark themed wikis, there's not really any noticeable difference between grey and dark grey, so the whole thing blends into one colour, leading to me wanting to remove it. As I say I think source mode editing should just be black on white, and I see what you've done to distinguish between input area and UI, but I don't think its working on grey-background wikis