manifest.json

{
  "name": "Web App Manifest Generator",
  "short_name": "App Manifest",
  "description": "A generator to help developers create Web App Manifests",
  "lang": "en-US",
  "start_url": "/appmanifest/",
  "scope": "/appmanifest/",
  "display": "standalone",
  "background_color": "#fff",
  "theme_color": "#0275d8",
  "icons": [
    {
      "src": "res/icon_hi_res_512.png",
      "sizes": "512x512",
      "type": "image/png"
    },
    {
      "src": "res/icon_xxxhdpi_192.png",
      "sizes": "192x192",
      "type": "image/png"
    },
    {
      "src": "res/icon_xxhdpi_144.png",
      "sizes": "144x144",
      "type": "image/png"
    },
    {
      "src": "res/icon_xhdpi_96.png",
      "sizes": "96x96",
      "type": "image/png"
    },
    {
      "src": "res/icon_hdpi_72.png",
      "sizes": "72x72",
      "type": "image/png"
    },
    {
      "src": "res/icon_mdpi_48.png",
      "sizes": "48x48",
      "type": "image/png"
    }
  ]
}