themes-wordpress/pixl/styles/red.json

{
    "$schema": "https://schemas.wp.org/trunk/theme.json",
    "version": 2,
    "title": "Red",
    "settings": {
        "color": {
            "palette": [
                {
                    "color": "#E4FFF5",
                    "name": "Primary",
                    "slug": "primary"
                },
                {
                    "color": "#E4FFF5",
                    "name": "Foreground",
                    "slug": "foreground"
                },
                {
                    "color": "#B7253F",
                    "name": "Background",
                    "slug": "background"
                },
                {
                    "color": "#dc2f4e",
                    "name": "Tertiary",
                    "slug": "tertiary"
                }
            ]
        }
    }
}