Examine source code of Spiral Galaxy - Animated

{
  "theme": {
    "images": {
      "theme_frame": "FirefoxPersona-BLZ-SpiralGalaxy-Animation-header-7sec.png"
    },
    "colors": {
      "frame": "#808080",
      "tab_background_text": "#9d90fa"
    }
  },
  "version": "2.0",
  "name": "Spiral Galaxy - Animated",
  "manifest_version": 2,
  "description": "Hubble view of sprial galaxy, with shooting star animation. Galaxy photo courtesy of NASA (<a href=\"https://outgoing.prod.mozaws.net/v1/1d731cf5337a24d54e0dcba63492b2b893e2d1a12067aed731395efb2ec09c62/http%3A//www.nasa.gov\" rel=\"nofollow\">www.nasa.gov</a>).\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/spiral-galaxy-animated/#id=155086\" rel=\"nofollow\">https://addons.mozilla.org/en-US/firefox/addon/spiral-galaxy-animated/#id=155086</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> \nAnimation (c) 2010 BrianZ  All Rights Reserved (Not CC)"
}