Examine source code of cotton_candy

{
  "theme": {
    "images": {
      "theme_frame": "pink_clouds.png"
    },
    "colors": {
      "frame": "#f9a7f4",
      "tab_background_text": "#333333"
    }
  },
  "version": "2.0",
  "name": "cotton_candy",
  "manifest_version": 2,
  "description": "yep, pink clouds look like cotton candy!\n<a href=\"https://outgoing.prod.mozaws.net/v1/71fcd1ea1cc26b2ef99a7ee43d96d67536350455380232530e5bfb13e879fec5/http%3A//www.twobeers.net\" rel=\"nofollow\">www.twobeers.net</a>"
}