manifest.json

{
    "short_name": "Abdus",
    "name": "Abdus",
    "icon": [
        {
            "src": "/pwa/img/icons-192.png",
            "type": "image/png",
            "sizes": "192x192"
        }, 
        {
            "src": "/pwa/img/icons-512.png",
            "type": "image/png",
            "sizes": "512x512"
        }
    ],
    "start_url": "/",
    "background_color": "#3367D6",
    "display": "standalone",
    "orientation": "landscape",
    "theme_color": "#3367D6"
}