set my trinity realm to FFA
Unfortunately, I dont have the answer to your question, but how did you manage toQuote from: "Nic"set my trinity realm to FFA?
Worldserver config, obviously.... oO
Well if you change the zones to become sanctuary you can make their color blue. Not sure what exactly you mean by blue though. Although you'd have to modify all the zones in the DBCs.If modifying DBC isnt an option, another way is to set forced reactions to specific factions for each player. U can find forced reactions in ReputationMgr.
If you simply want to change the color and/or retain the hostility, you'll have to modify the UI as Ascathos said.
About your second question, what comes to my mind is that you can do either the following1. Disable guild registration or the whole guild system2. Remove the packet data that sends a player's guild information to other players, you'd find this, with some searching, in visibility update packets I think.3. Remove the guild name string from the UI by looking into FrameXML