{
  "lang": "en",
  "dir": "ltr",
  "display": "fullscreen",
  "theme_color": "aliceblue",
  "serviceworker": {
    "src": "sw.js",
    "update_via_cache": "none"
  },
  "permissions": ["usb"],
  "icons": [
    {
      "src": "images/df.png",
      "sizes": "192x192"
    }
  ]
}