It won't be possible to use color inputs for actual prop values until we land ✨ Support other format for string and integer: color and range Active
In the meantime, we can use form_alter to have a color input appear in any props or page data form, and get it rendering properly and internally responding to user input (such as making a selection with the color picker being properly reflected by the visible input value.
Active
0.0
Semi-Coupled theme engine
The MR in 📌 Create a test module that adds color, machine name, and dropbutton elements to the props form Active includes a test module with color component which can be cherry picked into this.