workout-tracker/views/manifest.json

{
    "name": "Workout Tracker",
    "short_name": "Workout",
    "start_url": "/",
    "display": "standalone",
    "background_color": "#1a1a1a",
    "theme_color": "#1a1a1a",
    "icons": [{
        "src": "/logo.png",
        "sizes": "512x512",
        "type": "image/png"
    }]
}