[
  {
    "name": "variables",
    "module": "postcss-custom-properties",
    "sources": [
      "http://caniuse.com/css-variables",
      "https://developer.mozilla.org/en-US/docs/Web/CSS/Using_CSS_variables"
    ],
    "caniuse": "css-variables"
  },
  {
    "name": "custom-media",
    "module": "postcss-custom-media"
  },
  {
    "name": "color",
    "module": "postcss-color-function"
  },
  {
    "name": "hexalpha",
    "module": "postcss-color-hex-alpha"
  },
  {
    "name": "hwb",
    "module": "postcss-color-hwb"
  },
  {
    "name": "rebeccapurple",
    "module": "postcss-color-rebeccapurple"
  },
  {
    "module": "postcss-calc",
    "sources": [
      "http://caniuse.com/calc",
      "https://developer.mozilla.org/en-US/docs/Web/CSS/calc"
    ],
    "caniuse": "calc"
  }
]