Nope, not that easy. I have an extra set of AC controls that I was playing around with, trying to figure out how to change them. If you take the controls apart, you will see that the plastic part that covers the lights is actually a tranparent/white peice of plastic, with a three ply sticker on top. The three ply sticker is basically a clear coat, then a black coat that has the icons cut out, then the last layer is green, which provides the glow. The lights behind the plastic are clear, so it is the green layer that gives it the glow you see.
Unfortunatly, you can NOT remove the sticker without ruining it. You would have to go in from behind and remove the green that way....unfortunatly, that is impossible. I even tried using my dremel kit to dremel away the plastic from behind the sticker, hoping that I could peel off the green, just over the icon cut outs, but that won't work either, because then you will have nothing to hold the sticker on.
I have been in talks with Black Cat Customs to see if they can make a complete cover sticker, complete with the icons and all three layers. They would need my set of AC controls first, so I have to take mine apart and send them to BCC. I have also been talking to two sign shops and a custom shop in my area to see if they can do something, but again I need to give them my controls to play with. Hopefully we will have an answer in a few weeks.