Examine source code of Blunderbuss.Alive

{
  "theme": {
    "images": {
      "theme_frame": "Blunderbusspersona1.jpg"
    },
    "colors": {
      "frame": "#3b2f2f",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Blunderbuss.Alive",
  "manifest_version": 2,
  "description": "Watch the clouds come to life from your plane window. And go back in time..\n\nby Chris DeTraglia\n<a href=\"https://outgoing.prod.mozaws.net/v1/8b4355fa6e665fc3738871f4be2fabb4748ad081c7294af92ec4a5ccee201b96/http%3A//darst.deviantart.com\" rel=\"nofollow\">darst.deviantart.com</a>"
}