https://bugs.winehq.org/show_bug.cgi?id=38310
--- Comment #2 from Sergey Svistunov zenden2k@gmail.com --- Created attachment 53512 --> https://bugs.winehq.org/attachment.cgi?id=53512 Screenshot of an Test app on windows 8
Slider background is corrretly filled with COLOR_WINDOW brush (white color)