Shoutbox

Just wondering if an idea I had was possible. I would find it quite useful.

It would be good if when I change the colour of a chat window for a specific person using the button, that the background would automatically change to a pre-specified image. Even better would be the ability for the function to work vice-versa as well so changing the background would change the colour.

An example would be, say, that I changed a friend's window to green and then automatically a pre-determined background that I choose for that particular green is displayed - perhaps an image that compliments green.