Examine source code of Sunshine Swirlies

{
  "theme": {
    "images": {
      "theme_frame": "yellowTOP.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Sunshine Swirlies",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/9a80752cca4021ec7c26211261a18a20153a9847bf4daa771ab39396452f4e7a/http%3A//www.andorrawebdesign.com\" rel=\"nofollow\">www.andorrawebdesign.com</a>"
}