I was planning on putting a blacklight on my tron control panel - and still may. You can see I've left the perfect little space for one of the PC mod cathode tubes. They are around 20 bucks. Basically the light would make all the white areas, the trackball, and the stick glow. I was also thinking of tracing over the overlay with those blacklight markers.
Right now all I have are 4 superbright UV led's in my tron stick. Although my one hesitation is how safe would it be to be looking near that much UV light for longer periods of time. Playing it for 20-30 mins on an upright Tron is one thing, but hours at end at a party is another.