Specktre modified from Alex Chan's original work here. The code has been modified to output its patterns using original Painter Goblin palettes for testing their effectiveness and aesthetic.

The original code is MIT licensed and the modifications to that have been minor i.e. largely around the mechanisms used to output color.

To run simply python specktre.py and an image will be output. You'll need to modify the code to use more sophisticated options from Alex's original code.