manifest.json

{
  "name": "Mockup Progressive Web App",
  "short_name": "Mock PWA",
  "description": "A mock progressive web app built with React and mini.css.",
  "lang": "en-US",
  "start_url": "./index.html",
  "display": "standalone",
  "theme_color": "#1a237e",
  "icons": [
    {
      "src": "\/android-icon-48x48.png",
      "sizes": "48x48",
      "type": "image\/png",
      "density": "1.0"
    },
    {
      "src": "\/android-icon-72x72.png",
      "sizes": "72x72",
      "type": "image\/png",
      "density": "1.5"
    }
  ]
}