We actually already have! I contributed hwb() color support as part of my work on Parcel CSS, and it shipped in Firefox 96! https://github.com/servo/rust-csspar

We actually already have! I contributed hwb() color support as part of my work on Parcel CSS, and it shipped in Firefox 96! https://github.com/servo/rust-cssparser/commit/62d63fea751df1975ebc3779d15cb6e2c2a3371d https://github.com/servo/rust-cssparser/commit/62d63fea751df...