I've done some link chasing and it looks like there are at least 2 colors to it
video where it looks to be green and orange: http://www.youtube.com/watch?v=4lE2fKK_eq8
Notice the fact that it has a primary and secondary color option: http://www.youtube.com/watch?v=WJruoJ0lqMg
-Terry
-----
"so listen up boy, or pornography starring your mother will be the second worst thing to happen to you today"
TF2: Spy
video where it looks to be green and orange: http://www.youtube.com/watch?v=4lE2fKK_eq8
Notice the fact that it has a primary and secondary color option: http://www.youtube.com/watch?v=WJruoJ0lqMg
-Terry
-----
"so listen up boy, or pornography starring your mother will be the second worst thing to happen to you today"
TF2: Spy