theme.json

{
    "$schema": "https://schemas.wp.org/trunk/theme.json",
    "version": 2,
    "styles": {},
    "settings": {
        "appearanceTools": false,
        "border": {
            "radius": false,
            "color": false,
            "style": false,
            "width": false
        },
        "spacing": {
            "margin": false,
            "padding": false
        },
        "typography": {
            "fontSizes": [],
            "fontFamilies": [],
            "dropCap": false,
            "letterSpacing": false,
            "textTransform": false,
            "textDecoration": false,
            "customFontSize": false,
            "fontStyle": false,
            "fontWeight": false,
            "lineHeight": false
        },
        "color": {
            "link": false,
            "custom": false,
            "customDuotone": false,
            "customGradient": false,
            "defaultGradients": false,
            "defaultPalette": false,
            "text": false,
            "background": false
        },
        "blocks": {
            "core/button": {
                "border": {
                    "radius": false
                }
            }
        }
    }
}