Alias

Types can be aliased by using dot-delimited path syntax, wrapped in curly braces, as defined in 3.8:

JSON

{
  "color": {
    "base": {
      "blue": {
        "$type": "color",
        "$value": "#218bff"
      },
      "green": {
        "$type": "color",
        "$value": "#6fdd8b"
      }
    },
    "semantic": {
      "action": {
        "$type": "color",
        "$value": "{color.base.blue}"
      }
    }
  },
  "gradient": {
    "$type": "gradient",
    "$value": [
      { "color": "{color.base.blue}", "position": 0 },
      { "color": "{color.base.green}", "position": 1 }
    ]
  }
}

YAML

color:
  base:
    blue:
      $type: color
      $value: "#218bff"
    green:
      $type: color
      $value: "#6fdd8b"
  semantic:
    action:
      $type: color
      $value: "{color.base.blue}"
gradient:
  $type: gradient
  $value:
    - color: "{color.base.blue}"
      position: 0
    - color: "{color.base.green}"
      position: 1

Notes

• Aliases can even alias aliases! So long as they’re not an infinite loop, you can alias as many times as you want.