Examine source code of UnitedGamers121 Theme

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#00c4c7"
    }
  },
  "version": "2.0",
  "name": "UnitedGamers121 Theme",
  "manifest_version": 2,
  "description": "I wanted to promote our youtube channel, <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/7f74c3a12d15feff7f64aec3d2e795b15e042078e47b14650292d84cfead4604/http%3A//www.youtube.com/user/unitedgamers121\">www.youtube.com/user/unitedgamers121</a> , through Firefox themes and personas!"
}