Well, the panel graphic inspired me. I had a random quote signature that I developed a couple months back. It would take quotes from my favorite movies and translate them into a graphic image which would randomly change whenever someone was reading a message. The graphic was kind of plain, I always planned to go back and make it look nicer - the panel thing just gave me the inspiration to do it in a similiar manner.
So, I wrote my own panel generator and combined it with my random sig stuff. The "hard" part was making the panel fully dynamic in size and centering nonproportional text.
I'm planning on making it so people can add their own text for signatures and avatars.
