Add None or transparent option

Hi I am working with CompactPicker. I want to add 'none' or 'transparant' color box or like a cross option to reset color to original color in that picker.

Start at the CompactPicker entry point and trace how its current color value is represented and updated. Define the expected behavior for a none, transparent, or reset option, then verify that selecting it restores the original color as requested.

Written by the indexing model from the issue text.