http://bugs.winehq.org/show_bug.cgi?id=12070
--- Comment #4 from Marcin ergo14@gmail.com 2008-03-17 03:32:27 --- (In reply to comment #3)
To me it's not obvious where that "blending mode dropdown" is. Is that the one on the Layers tool palette left to the "Opacity:" control? That one works fine for me using today's Wine git.
Yes, thats the one. its changing on my pc's too - but there are no visible changes on the image itself for some reason. im using 0.9.57 build.