I am not a programmer. The only help I can offer is:
First
this
And a server for testing.
BTW:
I am not looking for chatcolors. The only thing I am looking for is to give certain admingroups certain tags (and maybe colors XD ). I have in mind to set up a VIPsystem, with different ClanTags.
This Plugin does have a "automatic add a Tag"-function but only for one group of admins.
Maybe I can do more to help, that I cant see atm.
Just ask, I will help werever I can to do this.