http://bugs.winehq.org/show_bug.cgi?id=9261
--- Comment #3 from Richard Hendrikse een_meel_of_geen_meel@hotmail.com 2007-09-29 13:52:26 --- I can confirm that the bug both still exists in WINE 0.9.46 AND that it was sort of a regression. I have submitted a screenshot (to appdb) that matches the situation in the first screenshot, but shows only the discolorations (which also happen in text-areas and menus) whereas the black boxes got fixed.
I don't remember which WINE version introduced this discoloration, but the discolorations didn't exist in 0.9.28 iirc... it has been a while though :/