Examine source code of Swan Song

{
  "theme": {
    "images": {
      "theme_frame": "SwanSongH.jpg"
    },
    "colors": {
      "frame": "#307d7e",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Swan  Song",
  "manifest_version": 2,
  "description": "pair of swans, birds, pond, swim, lake, water, flower, tropical, The wallpaper to match can be found at: <a href=\"https://outgoing.prod.mozaws.net/v1/34ef5abf9223707fa3e81020fa78fb8bc9fcf360b7bf07f9b3e5bee9b62ad2d4/http%3A//animals.desktopnexus.com/wallpaper/691790/\" rel=\"nofollow\">http://animals.desktopnexus.com/wallpaper/691790/</a>"
}