Pure yellow (full red and full green, i.e. red = 255, green = 255, blue =0) shows very greenish, but on a native window10 box it is yellow. That's unfortunate and should be addressed. A cross-platform (Mac/windows) plugin for a third party host where we exploit light-dark mode on the Mac and HighContrast on/off on windows requires playing with color components and it is for this reason we noticed the difference between native and virtual Windows.
