Examine source code of Hope for Spring

{
  "theme": {
    "images": {
      "theme_frame": "HopeforSpringH2Custom.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Hope for Spring",
  "manifest_version": 2,
  "description": "grunge, brown, flowers, butterfly, color, tan, gray, pink, red, abstract. My wallpaper to match can be found at: <a href=\"https://outgoing.prod.mozaws.net/v1/14090ca48a0a1268d658e7429a87b39d61fd53b3b2f1d2a914764dfc9a536e2d/http%3A//nature.desktopnexus.com/wallpaper/654493/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/654493/</a>"
}