[jones1618]

Love it! Here are some cool patterns:

  * RPB - Looks like a 3D printer printing a bowl of Cheerios
  * PRLL - Simplest Eastbound highway
  * BRSS & BLPP - Nearly space-filling hex spirals

[brtmr]

Thanks! I have also discovered a pattern that is fully space-filling: BPBBP - will slowly fill the entire screen with a growing green hexagon, with a single yellow dot at the origin.