Hi, Is it possible to personalise texting threads based on who the thread is with? i.e. if the thread is one with a friend I could set some kind of person-specific background behind the text bubbles rather than the standard black background? I ask because I'm constantly almost accidentally texting to the wrong people on the wrong thread because if you enter the wrong thread (easily done with touch screens) then you have no way of knowing that unless you actually read the previous texts to check or look to see if there name is in the small bar near the top of the screen. It'd be much easier if I could set fun backgrounds or at least different colours other than black for different people. Thanks!