Really cool! It’s a shame that the CSS Highlight API only allows changing the color and not the font.
For me, a little highlighting goes a long way. I don't like my code looking like a box of Crayola crayons. Throwing in multiple fonts doesn't sound helpful at all.
Replaced Shiki on a docs site, grammar pack was bigger than the rest of the JS. 2KB for color-only feels like a fair trade.