2nd Postbit Template. Help w/ implementation!

I want to create a second post bit, for a certain group of forums. It is almost exactly like the original, except it forces a font color (I have a default font color for each user, but color is not allowed in the Role Play forums due to reading difficulty).

So could anybody tell me how I'd implement that? (As in create the template, get the variable name, etc; I am a n00b at creating new templates.)