Spec:

https://github.com/googlefonts/colr-gradients-spec/blob/main/OFF_AMD2_WD.md

Chromium Bug:

Summary:

COLR v1 fonts are a new vector color font format that provides gradients, transforms and compositions for font glyph drawing enabling an expressive, very compact glyph definition format for OFF/OpenType fonts. This format provides size and rendering fidelity (scaling) advantages over bitmap fonts such as SBIX, CBDT/CBLC fonts for glyph designs that lend themselves well to being encoded as vector art. 

Thank you in advance for your position statement on this topic,

Dominik