[nsajko]

The Byrne they mention is Oliver Byrne, who made a book of Elements of Euclid including colored graphics for the geometry.

https://en.wikipedia.org/wiki/Oliver_Byrne_(mathematician)

Archive.org, print: https://news.ycombinator.com/item?id=11628606

In TeX: https://github.com/jemmybutton/byrne-euclid