manifest.json

{
  "short_name": "Spectrum",
  "name": "Spectrum",
  "icons": [
    {
      "src": "/img/homescreen-icon-57x57.png",
      "sizes": "57x57",
      "type": "image/png"
    },
    {
      "src": "/img/homescreen-icon-72x72.png",
      "sizes": "72x72",
      "type": "image/png"
    },
    {
      "src": "/img/homescreen-icon-114x114.png",
      "sizes": "114x114",
      "type": "image/png"
    },
    {
      "src": "/img/homescreen-icon-144x144.png",
      "sizes": "144x144",
      "type": "image/png"
    },
    {
      "src": "/img/homescreen-icon-192x192.png",
      "sizes": "192x192",
      "type": "image/png"
    },
    {
      "src": "/img/homescreen-icon-512x512.png",
      "sizes": "512x512",
      "type": "image/png"
    },
    {
      "src": "/img/apple-icon-57x57-precomposed.png",
      "sizes": "57x57",
      "type": "image/png",
      "purpose": "maskable"
    },
    {
      "src": "/img/apple-icon-72x72-precomposed.png",
      "sizes": "72x72",
      "type": "image/png",
      "purpose": "maskable"
    },
    {
      "src": "/img/apple-icon-114x114-precomposed.png",
      "sizes": "114x114",
      "type": "image/png",
      "purpose": "maskable"
    },
    {
      "src": "/img/apple-icon-144x144-precomposed.png",
      "sizes": "144x144",
      "type": "image/png",
      "purpose": "maskable"
    },
    {
      "src": "/img/apple-icon-192x192-precomposed.png",
      "sizes": "192x192",
      "type": "image/png",
      "purpose": "maskable"
    },
    {
      "src": "/img/apple-icon-512x512-precomposed.png",
      "sizes": "512x512",
      "type": "image/png",
      "purpose": "maskable"
    }
  ],
  "start_url": "/?utm_source=homescreen",
  "display": "standalone",
  "theme_color": "#171A21",
  "background_color": "#171A21"
}