Set color palette

In theme.json, hide default color pickers and set a controled ranged colors.

{
	...
	"settings": {
		"color": {
			"custom": false,
			"defaultPalette": false,
			"customDuotone": false,
			"customGradient": false,
			"palette": [
				{
					"slug": "dark",
					"name": "Dark",
					"color": "#19191A"
				},
				{
					"slug": "bright",
					"name": "Bright",
					"color": "#FFFFFF"
				}
			]
		}
	}
	...
}