manifest.json

{
    "short_name": "ELM",
    "name": "ELM Times",
    "icons": [
        {
            "src": "assets/icons/icon-152.png",
            "type": "image/png",
            "sizes": "152x152"
        },
        {
            "src": "assets/icons/icon-167.png",
            "type": "image/png",
            "sizes": "167x167"
        },
        {
            "src": "assets/icons/icon-180.png",
            "type": "image/png",
            "sizes": "180x180"
        },
        {
            "src": "assets/icons/icon-192.png",
            "type": "image/png",
            "sizes": "192x192"
        },
        {
            "src": "assets/icons/icon-512.png",
            "type": "image/png",
            "sizes": "512x512"
        }
    ],
    "start_url": "/",
    "background_color": "#95112d",
    "display": "standalone",
    "theme_color": "#95112d",
    "orientation": "portrait"
}