It's using the "default color" for PutString, search for the hexcode in the source. If you change its color all other PutString colors will change too.
WoW Color Hack (Use color-codes in text) 09/23/2007 - WoW Exploits, Hacks, Tools & Macros - 31 Replies WoWColorHack.flt
-=Preamble=-
I'm quite surprised that no one has released
anything similar yet - the theory behind
this dates back to the alpha days. Hell,
I first used this filter on my own alpha
sandbox.
-=Theory=-