I have to admit, I was also slightly irritated when I actually checked out the repo. The title is deceptive. "Donatello, a JS drawing library" - which is what it is - would probably not rack up as many points. Interesting tool, I hope to check it out sometime, but the OP should have been a little more honest. Just call it what it is.

Its pure CSS in the same way most pure 'HTML5' demos are

The title inside the main file is a little more honest: "A pure CSS vector drawing library" meaning that the vectors created are CSS only (not Canvas).

It produces CSS. It should probably have HTML+CSS export, then it won't need Javascript.