I tried to color the bulbs in the temperature panel to blue. I used a permanent magic marker but now no light goes through at all. I can buy blue leds for 3 bucks a piece but i'm sure theres a cheaper way to do it. Does anybody know how I can color them and still let the light out? Also, do led's heat up like regular light bulbs because i dont want the marker to melt off the bulbs. How can i color the regular bulbs blue so that the marker wont melt off and they will stay blue? I thought about using a dry erase marker to see if that would work, or putting blue celephane around the bulb.