https://bugs.winehq.org/show_bug.cgi?id=38310
--- Comment #3 from Sergey Svistunov zenden2k@gmail.com --- Created attachment 53513 --> https://bugs.winehq.org/attachment.cgi?id=53513 Slider's background is just COLOR_BTNFACE
WM_CTLCOLORSTATIC is not sent or ignored