Examine source code of Rainy Day Reflection

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#937e6b",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Rainy Day Reflection",
  "manifest_version": 2,
  "description": "Designed by MaDonna\n\nMy wallpaper to match is at: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/9da61b5844c1553b23cdd36180bfaed761a9bb7975853b042458c661e2b30642/http%3A//nature.desktopnexus.com/wallpaper/1745424/\">http://nature.desktopnexus.com/wallpaper/1745424/</a>"
}