facilmap/frontend/src/manifest.json

{
    "name": "%APP_NAME%",
    "short_name": "%APP_NAME%",
    "icons": [{
        "src": "./static/app-512.png",
        "sizes": "512x512",
        "type": "image/png"
    }],
    "background_color": "#ffffff",
    "theme_color": "#ffffff",
    "display": "standalone",
    "start_url": "../"
}