{
  "border-width": {
    "thin": {
      "$type": "dimension",
      "$description": "Thin border (0.0625rem / 1px at the default root) — hairlines, dividers, and default control borders.",
      "$value": {
        "value": 0.0625,
        "unit": "rem"
      }
    },
    "thick": {
      "$type": "dimension",
      "$description": "Thick border (0.125rem / 2px at the default root) — emphasis borders and selected states.",
      "$value": {
        "value": 0.125,
        "unit": "rem"
      }
    },
    "thicker": {
      "$type": "dimension",
      "$description": "Thicker border (0.25rem / 4px at the default root) — focus rings and high-emphasis outlines.",
      "$value": {
        "value": 0.25,
        "unit": "rem"
      }
    },
    "default": {
      "$type": "dimension",
      "$description": "Default border width — aliases thin so the system-wide default can be retuned in one place.",
      "$value": "{border-width.thin}"
    }
  }
}