Once upon a time, it was green, because green is one of those "cool", "masculine" colors. Then it changed to blue when I found my favorite color should be a color I actually like looking at. It went from dark blue, to deep purple, to dark blue again. Now I've changed my mind, just to get a theme going, and I now claim it's a mixture of white and cyan. Not pleasant to look at, but like I said, I've got a theme going, and it's a very characteristic combination to use in games and such. People usually don't consider painfully bright street racing cars to look good. People also don't expect to see white and cyan running around in action games. It stands out really well.