A really unpredictable spiral grapher. Use color diversity to highlight interesting parts of the spiral. You can adjust smoothness and curvature more precisely by pressing 's' or 'c' respectively. No such feature exists for color diversity as it is just for highlighting. The reason why I put the precision feature is that even tiny changes completely change the look of the spiral.
Some things to try (first number for smoothness, second number for curvature) Hexagonal Rainbow: 0 60 Square Rainbow: 0 90 Octagonal Spiral: 0.09 60 Square Spiral: 0.01 95 Another Hexagonal Spiral: 0.1 95 Triangle Rainbow: 0 120 Pentagonal Spiral: 0.09 120 Penrose-like Tiling: 0 108 Post other interesting combinations you find down in the comments!