{
  "name": "Promin",
  "start_url": "./",
  "display": "standalone",
  "background_color": "#121212",
  "theme_color": "#ffffff",
  "icons": [
    {
      "src": "manifest_192x192.png",
      "sizes": "192x192",
      "type": "image/png"
    },
    {
      "src": "manifest_512x512",
      "sizes": "512x512",
      "type": "image/png",
      "purpose": "any" 
    }
  ],
  "screenshots": [
    {
      "formfactor": "narrow",
      "sizes": "407x881",
      "src": "screen1.png",
      "type": "image/png"
    },
    {
      "formfactor": "narrow",
      "sizes": "407x881",
      "src": "screen2.png",
      "type": "image/png"
    },
    {
      "formfactor": "narrow",
      "sizes": "407x881",
      "src": "screen3.png",
      "type": "image/png"
    }
  ]
}