Great idea. Considering the great variety of patterns they offer, I wonder if they should add aperiodic tilings! http://en.wikipedia.org/wiki/Aperiodic_tiling

Great idea. Considering the great variety of patterns they offer, I wonder if they should add aperiodic tilings! http://en.wikipedia.org/wiki/Aperiodic_tiling http://en.wikipedia.org/wiki/Aperiodic_tiling