http://bugs.winehq.org/show_bug.cgi?id=33782
WineBuG winebugs140@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |UPSTREAM
--- Comment #7 from WineBuG winebugs140@gmail.com --- The problem seems to be fixed in Mac OS X 10.9.2.
But I think it's still a good idea to thoroughly test how applications' windows behave in 16-bit color mode with the mac driver.