Thanks for the link! Happy to answer any questions.

A couple details that didn't make it to the blog post:

* I tried some smoother connection approaches than just intersecting the lines, but couldn't get it to look good in any way. Lots of very ugly iterations in between.

* At one point I/Codex needed to adjust some of the kerning and glyphs to avoid tiny line artifacts between connected characters, on visible at certain resolution/size combos. Not sure if that was the standard solution either.

This is pretty cool. one thing that jumped out of me though was that the colours did not alternate consistently.. for example you have W and X as BB/GG variants but why not several others? (eg A, B, D, H, K, M, N, O, P, Q, R, U, V & Y)