Examine source code of Celebrating Freedom

{
  "theme": {
    "images": {
      "theme_frame": "celebratefreedomHcopy.jpg"
    },
    "colors": {
      "frame": "#003366",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Celebrating Freedom",
  "manifest_version": 2,
  "description": "4th of July, America, bird of prey, eagle, fireworks, flag, Independence Day, national bird, New Years Eve, stars and stripes, United States, USA, flag day, Star Spangled Banner, \n\nDesigned by MaDonna\n\nMy wallpaper to match is t: <a href=\"https://outgoing.prod.mozaws.net/v1/31cba02e7c14a9220303c15897f5e016360ca884377e5cf2fbfd2aae3dc50325/http%3A//abstract.desktopnexus.com/wallpaper/1078644/\" rel=\"nofollow\">http://abstract.desktopnexus.com/wallpaper/1078644/</a>"
}