Tiger rendering issue: https://imgur.com/a/huaKQgk

Your effort to create a lightweight vector file format with these features is really appreciable, even if it can never replace SVG for the more general use case. Anyway the tiger has rendering problems (I am quite obsessed with this tiger: even my rasterizer initially did not draw it correctly).

Spoiler: I'm one of the developers of AmanithSVG - http://www.amanithsvg.com