Examine source code of Watching Butterfly

{
  "theme": {
    "images": {
      "theme_frame": "WatchingButterflyCustom.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Watching Butterfly",
  "manifest_version": 2,
  "description": "Two adorable kittens watching a butterfly, butterflies, spring, summer, cats, kitty, grass, flowers, vines, leaves.. My matching wallpaper is at: <a href=\"https://outgoing.prod.mozaws.net/v1/938053e3e5565d857ad342293e85c2e9d8258001ca4986d49b99df4bb6f99b10/http%3A//animals.desktopnexus.com/wallpaper/619900/\" rel=\"nofollow\">http://animals.desktopnexus.com/wallpaper/619900/</a>"
}