themes-wordpress/raw/styles/clay.json

{
	"title": "Clay",
	"settings": {
		"color": {
			"palette": [
				{
					"color": "#f7f8f2",
					"name": "Background",
					"slug": "background"
				},
				{
					"color": "#111111",
					"name": "Foreground",
					"slug": "foreground"
				},
				{
					"color": "#707070",
					"name": "Secondary",
					"slug": "secondary"
				}
			]
		}
	},
	"version": 2,
	"$schema": "https://schemas.wp.org/trunk/theme.json"
}