Comment by nicoburns
16 hours ago
"draw whatever is in a font at this codepoint" is doing quite a lot of work there. Some emoji fonts just embed a PNG which is easy. But COLRv1 fonts define an entire vector graphics imaging model which is similar what you need to render an SVG.
Yes, but at this point we're completely outside the scope of Unicode, which has nothing to do with how anything actually gets drawn to the screen.