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