SubOne - 2008-06-04

I am trying to get the ActionScript language style configured more to my liking. However, I tried to move "false newline null true undefined NaN void" to the FUNCTION category so I could style just those a specific color, but it does not seem to be picking up any of the style options from that category. Perhaps there's something I'm doing wrong? Could I add my own categories? Is there documentation somewhere on how those XML files work and which to use?