Examine source code of MonStars4U Purple Stars

{
  "theme": {
    "images": {
      "theme_frame": "MonStarsHeader.jpg"
    },
    "colors": {
      "frame": "#030303",
      "tab_background_text": "#f7efef"
    }
  },
  "version": "2.0",
  "name": "MonStars4U Purple Stars",
  "manifest_version": 2,
  "description": "Add some Star Power to your Firefox browser! Based on the game, Monster World, and created by the MonStar and brought to you by MonStars4U!\n\nMonStars4U\n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/b0de289e4aeda4abc25d75b0b822ad37b70d8213c406da59013d27ad1950071d/http%3A//www.facebook.com/MonStars4U\">www.facebook.com/MonStars4U</a>\nGuaranteed All Stars ~ All The Time :)\n☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★☆★"
}