So great that, finally, the ability to load theme.json colours has been added to the colour picker field, but the value returned is only the RGB numbers, which is only really 50% useful.

I would like to see the array return expanded to also include the colour's slug, at the least, and also the css classes for both text and background use.

If you're not sure what I mean, have a look at this plugin: https://github.com/log1x/acf-editor-palette

Finally, it would be great to replace the current UI with the block editor's native one.