Examine source code of For GameMster.cz

{
  "theme": {
    "images": {
      "theme_frame": "hlavika2.jpg"
    },
    "colors": {
      "frame": "#4f63e3",
      "tab_background_text": "#4f63e3"
    }
  },
  "version": "2.0",
  "name": "For GameMster.cz",
  "manifest_version": 2,
  "description": "Person for <a href=\"https://outgoing.prod.mozaws.net/v1/f288cbc24711e8d0efc29c882dc63ae611df769abb1da8c7a7f9e6736158cea6/http%3A//www.GameMaster.cz\" rel=\"nofollow\">www.GameMaster.cz</a>\nEdit Smrtkox(cZ)"
}