White Dude, WHITE.
I can't beleive so many people voted for black.(I suspect it's so they feel good about their choice) Come on people.
Black!? That's like the choice of the slimey operators who slap it on their beaten up, cigarette burned, graffiti covererd, generic vertical shooter JAMMA cabinets that they dump off at the 24 hour laundromats in Korea town.
Your artwork will POP with a white background no matter what it looks like(as long as it's not white)
When I primered(white primer) my Q*bert cabinet I half wanted to keep it that way instead of restoring the yellow. It looked CLEAN.
Hell, at least use white primer, if you like it you keep it if not, throw on another color.
White Dude.