Examine source code of Vivid Sunset

{
  "theme": {
    "images": {
      "theme_frame": "Colorful-Sun-Header.jpg"
    },
    "colors": {
      "frame": "#75ab2e",
      "tab_background_text": "#f6f7b7"
    }
  },
  "version": "2.0",
  "name": "Vivid Sunset",
  "manifest_version": 2,
  "description": "Matching Desktop Wallpaper: <a href=\"https://outgoing.prod.mozaws.net/v1/14b5ce11975ee1fa7759733ca18c17e72e089390324d73e99efa6bddcba0d1f3/http%3A//www.desktopedia.com/wallpaper/Beautiful-Sky/\" rel=\"nofollow\">http://www.desktopedia.com/wallpaper/Beautiful-Sky/</a>   .\n\n\n\n ~ PHOTO (with permission) Courtesy of Desktopedia ~\n\n( sunset sunrise sky colorful hills clouds grass sun bright colors color orange green red black white yellow pink purple blue cloud dark valley smooth gradient chartreuse beautiful pretty glowing morning dusk twilight dawn )"
}