Bug's Life, A Easter Egg - Chess Piece Box

In the begining of Geri's Game, you see the codger set the box down on the table. If you
look at the side you'll see 'Pixar Shorts.'
If you look closer, you'll also see RT Richmond's.

Pixar is located in Richmond California. I'm guessing that the RT is a reference to the Renderman Toolkit that they used to do the clip.