The only thing I've discovered that's missing from this page is a variation of the 'Chaos' pattern, but with an extra 'corner' added at the center of the shape.

The only thing I've discovered that's missing from this page is a variation of the 'Chaos' pattern, but with an extra 'corner' added at the center of the shape. This way, a square which normally looks like a grey square starts to have some pretty interesting patterns. There's a playground for this here: http://stestagg.github.io/Sierp.js/ http://stestagg.github.io/Sierp.js/ - chrome/ff only