I have some XEGS systems in my stock which seems to be the right candidates for paintings (as the housings are heavily used and some weird "Atari Fans" drilled holes into it for $0,20 cent switches I removed of course).

Attached some mokup's, what seems to be the best coloring?

According to some sources it seems the original design of the XEGS was made by a gay designer which may explain the fancy coloring of the buttons....

Picture 1: black, dark red on top, gray in front, silver buttons, silver atari brand, yellow led
Picture 2: black, silver atari brand, black buttons, blue led
Picture 3: black, silver atari brand, silver front, black buttons, blue led
Picture 4: black, dark red front, gray surrounds the power button, silver buttons, silver atari brand, yellow led