devdocs/public/manifest.json

{
  "name": "DevDocs",
  "short_name": "DevDocs",
  "description": "API Documentation Browser",
  "start_url": "/",
  "display": "standalone",
  "background_color": "#EEEEEE",
  "icons": [
    {
      "src": "/images/webapp-icon-32.png",
      "sizes": "32x32",
      "type": "image/png"
    },
    {
      "src": "/images/webapp-icon-60.png",
      "sizes": "60x60",
      "type": "image/png"
    },
    {
      "src": "/images/webapp-icon-80.png",
      "sizes": "80x80",
      "type": "image/png"
    },
    {
      "src": "/images/webapp-icon-128.png",
      "sizes": "128x128",
      "type": "image/png"
    },
    {
      "src": "/images/webapp-icon-192.png",
      "sizes": "192x192",
      "type": "image/png"
    },
    {
      "src": "/images/webapp-icon-256.png",
      "sizes": "256x256",
      "type": "image/png"
    },
    {
      "src": "/images/webapp-icon-512.png",
      "sizes": "512x512",
      "type": "image/png"
    }
  ]
}