It is very common to accidentally send something to the wrong chat tab. Adding color coding would make this easier to avoid – simply following the same color as existing tabs would make it much clearer what tab you are currently typing into. White for English, green for corp, orange for group, etc.
Not much to say other than agreed - it’d help with the whole “whoops wrong chat” when you’re sending someone a miniature essay on why the colour red is superior to purple.