Examine source code of birds in feathers

{
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    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#5e4766"
    }
  },
  "version": "2.0",
  "name": "birds in feathers",
  "manifest_version": 2,
  "description": "from Chris Maynard\n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/9195ba0ec108165763b784bce0f900b85ddc8625cd79ac1649c18df4cbedcd7e/http%3A//www.feathersfolio.com\">www.feathersfolio.com</a>"
}