http://bugs.winehq.org/show_bug.cgi?id=22093
--- Comment #3 from Austin English austinenglish@gmail.com 2010-03-20 14:52:17 --- (In reply to comment #2)
"On Wine, the border is black."
Of which border are you talking about? The background behind the Options window is darker, because you launched it from a different place, right?
Look at the screenshots. On windows, you can see the Starcraft II logo at the top of the screen. On wine, it's too dark to see.