theme.json

{
    "version": 2,
    "settings": {
      "layout": {
        "contentSize": "960px"
      },
      "typography": {
        "customFontSize": false,
        "dropCap": false,
        "fontWeight": false,
        "lineHeight": false,
        "fontStyle": false,
        "fontSizes": [],
        "fontFamilies": [
          {
            "fontFamily": "Garamond, Times, Palatino, serif",
            "name": "Serif System Font",
            "slug": "serif-system-font"
          }
        ],
        "letterSpacing": false,
        "textTransform": false
      },
      "color": {
        "custom": false,
        "customGradient": false,
        "defaultGradients": false,
        "customDuotone": false,
        "link": false,
        "background": false,
        "defaultPalette": false,
        "palette": [
            {
                "slug": "brand1",
                "color": "#696969",
                "name": "Brand 1"
            },
            {
                "slug": "brand2",
                "color": "#777777",
                "name": "Brand 2"
            },
            {
                "slug": "brand3",
                "color": "#fff",
                "name": "Brand 3"
            },
            {
                "slug": "brand4",
                "color": "#f2f5f6",
                "name": "Brand 4"
            },
            {
              "slug": "brand1serif",
              "color": "rgb(22,22,22)",
              "name": "Brand 1 Serif"
            },
            {
              "slug": "brand2serif",
              "color": "rgb(255,51,0)",
              "name": "Brand 2 Serif"
            }
        ]
      },
      "spacing": {
        "padding": false,
        "margin": false,
        "units": []
      },
      "border": {
          "color": false,
          "radius": false,
          "style": false,
          "width": false
      },
      "blocks": {
        "core/paragraph": {
          "color": {
            "background": false
          }
        },
        "core/list": {
            "color": {
              "background": false,
              "customGradient": false
            }
        },
        "core/button": {
          "border": {
            "radius": false
          }
        }
      }
    },
    "styles": {
      "typography": {
        "fontFamily": "'Helvetica Neue', Helvetica, -apple-system, Arial, sans-serif",
        "lineHeight": "1.6"
      }
    }
    
}