Global manifest schema implies only hex values are supported in color declarations, which is not true

[mbmjertan]

Describe your bug

Steps to Reproduce

If this is contained in the globalVariables.colors in the global blocks manifest, you'll get a warning from a JSON schema-supporting editor:

			{
				"name": "Black / 25%",
				"slug": "black-opacity-25",
				"color": "rgba(14, 3, 37, 0.25)"
			}

Expected behavior

Using RGBA values is supported, so this shouldn't trigger a warning.

Support in color picker component:

Screenshots, screen recording, code snippet

No response

Environment info

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No