Examine source code of Fightclub.gr

{
  "theme": {
    "images": {
      "theme_frame": "fight.cl.3.jpg"
    },
    "colors": {
      "frame": "#b5a5a5",
      "tab_background_text": "#69d61c"
    }
  },
  "version": "2.0",
  "name": "Fightclub.gr",
  "manifest_version": 2
}