Examine source code of Kirby Face

{
  "theme": {
    "images": {
      "theme_frame": "kirby-face.png"
    },
    "colors": {
      "frame": "#ffcfdf",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Kirby Face",
  "manifest_version": 2,
  "description": "Let Kirby smile on your Firefox Browser ^___^\n\nImage-Source: <a href=\"https://outgoing.prod.mozaws.net/v1/b9733915a557820ec04abb4c995a46f873bf34d4359239a7e7fa6e5aec85a80d/http%3A//4walled.org/src/1257289330171.jpg\" rel=\"nofollow\">http://4walled.org/src/1257289330171.jpg</a>"
}