Penrose Chickens

Penrose Chickens were created by the mathematician Roger Penrose. They tile aperiodically... i.e. they tessellate, but the pattern never repeats. See https://en.wikipedia.org/wiki/Penrose_tiling

This is my own implementation of Penrose Chickens... the various examples I found on the Internet don't work :(, so I designed my own version, based on Penrose P2 (kite & dart) tiling.