Creating a google chrome app

{
  // Required
  "name": "Name of your game",
  "version": "Your game version",

  // Recommended
  "description": "This will show up in the extension control panel",
  "icons": {
    "128": "icon_128.png", //the game icon
    "16": "icon_16.png"    //the html page favicon
  },

  // Required
  "app": {
    "launch": {
      "local_path": "MonkeyGame.html"
    }
  },
  
  // Add any of these that you need
  "update_url": "http://path/to/updateInfo.xml",
  "content_security_policy": "default-src 'self' ",
  "incognito": "spanning",
  "offline_enabled": true,
  "permissions": ["cookies"]   //required for saving and loading state
}