Examine source code of Tuxedo

{
  "theme": {
    "images": {
      "theme_frame": "TuxedoH2.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Tuxedo",
  "manifest_version": 2,
  "description": "abstract, stripes, black and white, masculine, easy to read, simplistic, dark, My matching wallpaper can be found at: <a href=\"https://outgoing.prod.mozaws.net/v1/9aa21aa77c097d6a7e35cb950b0ae6ce81f005a4b9ea2bf11b4598d9c01b0333/http%3A//abstract.desktopnexus.com/wallpaper/647782/\" rel=\"nofollow\">http://abstract.desktopnexus.com/wallpaper/647782/</a>"
}