Examine source code of Animated Bouncy Ball

{
  "theme": {
    "images": {
      "theme_frame": "FirefoxPersona-BLZ-Ball2-Anim-header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffff00"
    }
  },
  "version": "2.0",
  "name": "Animated Bouncy Ball",
  "manifest_version": 2,
  "description": "Animated blue ball bounces across a light green background, yellow text. (animation, animated, APNG, bounce, bouncing)\nTo rate this or leave a comment, login at AMO &amp; scroll down on this page:\n<a href=\"https://addons.mozilla.org/en-US/firefox/addon/animated-bouncy-ball/#id=217454\" rel=\"nofollow\">https://addons.mozilla.org/en-US/firefox/addon/animated-bouncy-ball/#id=217454</a> \nSee all my persona designs here:\n<a href=\"https://addons.mozilla.org/en-US/firefox/collections/BrianZ/personas/\" rel=\"nofollow\">https://addons.mozilla.org/en-US/firefox/collections/BrianZ/personas/</a> \n(c) 2010 BrianZ  All Rights Reserved"
}