I've just gotten the chat up and running on the forum. When you have the time, please hop on and test it out and let me know what you think of it. I'm up for suggestions on color schemes. The font color pulls from the general font color of the rest of the forum (white) and I've not yet discovered a way to change that. So as of right now we have to stick with colors that display the white font.
Current Color Scheme:
Background for Own Messages: Gray
Background for Other's Messages: Black
Background for Notification Messages: Red
I believe the names of those posting might be editable but, I honestly got bored of staring at code for a bit and moved on to build more of the structure of the forum. So unlike the white message font, don't let the names hinder your creative suggestions as far as the background colors go.