It's not I'm afraid, no. To be honest I'm embarrassed about the code quality, since I mostly just hacked it together for myself and was a hobby project more than anything else, so I didn't release the source anywhere or think much about licenses. Having said that, here are the two JS files that power the "make your own color orb" browser tool:

https://www.dannyking.uk/js/colororbs/dna.js https://www.dannyking.uk/js/colororbs/sketch.js

The latter being the core rendering algorithm (inside the setup() and draw() functions).