Examine source code of MassiveGames

{
  "theme": {
    "images": {
      "theme_frame": "mgamessssssssssssssssss.jpg"
    },
    "colors": {
      "frame": "#8a8686",
      "tab_background_text": "#8a8686"
    }
  },
  "version": "2.0",
  "name": "MassiveGames",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/20a78fc806441378a8cd484b570ebc6a7109fb1e7100737087d0cb9628e467d9/http%3A//www.Massive-Games.com.ar\" rel=\"nofollow\">www.Massive-Games.com.ar</a>"
}