dl.emersa.it/static/manifest.json

{
    "name": "EmersaDownloader",
    "start_url": "https://dl.emersa.it",
    "theme_color": "rgb(34,197,94)",
    "background": "black",
    "orientation": "portrait",
    "display": "fullscreen",
    "short_name": "e-downloader",
    "icons": [
        {
           "src": "favicon.png",
           "type": "image/png",
           "sizes": "128x128"
        }
     ]
}