To help make palettes more usable and interesting for your users, the SVG palette image generator was introduced in 0.2.10.
In 0.2.11 the palette can be sorted and grouped into hue, brightness or saturation bands and then sorted within those groups.
I'm working on the user experience for this in coming releases, for now you'd have to study the code (check the tests and function-reference.md to get a jump start.