{
  "spacing": {
    "btn": {
      "focus": {
        "gap": { "$value": "2px" }
      }
    }
  },
  "typography": {
    "btn": {
      "font": {
        "weight": { "$value": "500" }
      }
    }
  },
  "size": {
    "btn": {
      "border": {
        "radius": {
          "base": { "$value": "100px", "$type": "dimension", "source": "$btn-border-radius" },
          "lg": { "$value": "100px", "$type": "dimension", "source": "$btn-border-radius-lg" },
          "sm": { "$value": "100px", "$type": "dimension", "source": "$btn-border-radius-sm" }
        }
      },
      "focus": {
        "border-radius": {
          "base": {
            "$value": "calc({size.btn.border.radius.base} + {spacing.btn.focus.border-gap})",
            "$type": "dimension",
            "source": "$btn-focus-border-radius"
          },
          "lg": { "$value": "{size.btn.focus.border-radius.base}", "$type": "dimension", "source": "$btn-focus-border-radius-lg" },
          "sm": { "$value": "{size.btn.border.radius.base}", "$type": "dimension", "source": "$btn-focus-border-radius-sm" }
        }
      }
    }
  }
}