200 grit sandpaper and elbow grease 
also checkout the other videos that i have posted on my account on youtube (there are only 4 as of yet) they are of some of the demonstrations of the color capibilities
in version 3 of the hardware i will be able to mix colors of rgb and acheve an insane ammount of possible colors. 255x255x255
also i will post schematics soon and probablly reccord a video of the build process for v3 , and also i am meeting with a man who works for a major toy company to talk about my game (i hope it goes well)