Examine source code of Push the button 1

{
  "theme": {
    "images": {
      "theme_frame": "pushthebutton_h.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Push the button 1",
  "manifest_version": 2,
  "description": "Original wallpaper:\n<a href=\"https://outgoing.prod.mozaws.net/v1/f58f0caa07f41590214f54617cef655cc7b461c51f95fd5aa905a2058ac2cdee/http%3A//theunlikedone.deviantart.com/art/Push-the-Button-90117715\" rel=\"nofollow\">http://theunlikedone.deviantart.com/art/Push-the-Button-90117715</a>"
}