your name is only changes when your status amongst the site changes ie, red means a mod, green means a vip, blue means an admin, purple means an actor, white means a normal posting member. if you are an actor and a mod then your color will be red as mods have more power. and same for admins as they can actually change anything about the site as well as ban members and ect. if you are a donating member of the site you receive the vip title and thus the green name, we very rarely have donating members there for green is a rare color to see.