I imported my X3 color settings into Pro, but the Window Background color only affects the white keys. I prefer dark colors for my window background, so have it set to a dark gray. However, the black keys are now white. In the colors dialog, it appears I can only change the white color. In X3, the black keys were always just slightly darker, which wasn't ideal, but ok. I professional, the black keys don't seem editable at all.