I was curious about that as well. With the project name Penrose there was a suspicion (more like a wish) that maybe this was to be prototype work for an interactive digital rendering of the Roger Penrose Road to Reality physics tome but a quick poke-around of project members bios turned up no personal linkage to Penrose. Just happened to listen to Penrose at Princeton when he promoting that book about 15 years ago.

Probably a reference to Penrose Diagrams which this looks like it would be good at, or possibly Penrose Graphical Notation. Both creations of Roger Penrose.