Bad background color with high contrast

[aubymori]

The background color is incorrect with high contrast enabled:

I believe to fix this you need to remove these lines and possibly explicitly make those frames use GetSysColor(COLOR_3DFACE) as their background:

Launcher/src/windows/repentogon_installer.cpp

Line 43 in 795a8d5

SetBackgroundColour(wxColour(240, 240, 240));

Launcher/src/windows/launcher.cpp

Line 150 in 795a8d5

SetBackgroundColour(wxColour(237, 237, 237));

I don't feel like setting up a build environment to fix it myself, though.