OKLCH support

OKLCH is interesting and can be considered in a bigger

When we created UI Skins, we took inspiration from UI Patterns Settings & Layout Options, so we used form elements plugin ID: textfield, color, checkbox...

Today, UI Patterns Settings & Layout Options are getting merged into UI Patterns 2 which is using JSON Schema for typing, instead of form elements plugin ID.

Why not decoupling data structure from form building in CSS variables too?

We can take the CSS data types:

https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Types

Or the new design tokens data types:

1. Color
2. Dimension
3. Font family
4. Font weight
5. Duration
6. Cubic Bézier
7. Number
8. Stroke style
9. Border
10. Transition
11. Shadow
12. Gradient
13. Typography

https://design-tokens.github.io/community-group/format/#types

So, duplicate of ✨ UX: Add other widgets Active ?

Yes, but not using the Drupal form elements as data type. We need to bad this practice. And promote the use of proper well-defined, industry standard, data types.