Examine source code of Robowars

{
  "theme": {
    "images": {
      "theme_frame": "robowarsheader.jpg"
    },
    "colors": {
      "frame": "#8f8f8f",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Robowars",
  "manifest_version": 2,
  "description": "all credit goes to <a href=\"https://outgoing.prod.mozaws.net/v1/65a096e38bc6808e1c175e20504ba667215f655f56a3777542882c8d6c5df0de/http%3A//www.Robowarsgame.com/\" rel=\"nofollow\">www.Robowarsgame.com/</a>"
}