CSS / Template EditJust substitute the word green here for any color you have there.
Then it doesn't really matter. No matter what, this is something that simply will not be agreeable upon by everyone. Some people want a dot, some the banner, some a flashing UFO above their name (I am in that camp). Some don't want anything by their username (I am in that camp).
At least it's now in, and is able to be styled.