Examine source code of Hordes

{
  "theme": {
    "images": {
      "theme_frame": "hordes-personna2.jpg"
    },
    "colors": {
      "frame": "#f5b01b",
      "tab_background_text": "#e0cf3a"
    }
  },
  "version": "2.0",
  "name": "Hordes",
  "manifest_version": 2,
  "description": "Hordes. Citoyens hors de la ville, prudence! Le jeu de survie ou la mort est certaine!"
}