{
  "short_name": "",
  "name": "",
  "icons": [
    { "src": "192.png", "type": "image/png", "sizes": "192x192" },
    { "src": "512.png", "type": "image/png", "sizes": "512x512" }
  ],
  "start_url": "/?utm_source=homescreen",
  "background_color": "#000000",
  "theme_color": "#000000"
}