my opinion:
don't paint the jellybean mags white or red or anything crazy like that. its either going to look cheap or like you're trying to do something ricey with a car thats too old to be rice, or a sick sad combination of both, and look like the car is worth $50 including a full tank of fuel.
my rule of thumb is generally don't color something if its already black or chrome. especially if youre doing a car that's matt black you're better off leaving steel as steel rather than colouring it, defeat the purpose of having a matt balck car i reckon, to not leave steel as steel.
keep it simple! like the interior panels, clean, no bullshit.
its your car