{
    "name": "CalcHub - Free Online Calculators",
    "short_name": "CalcHub",
    "description": "50+ free online calculators for math, finance, health, science, engineering and daily use.",
    "start_url": "/",
    "display": "standalone",
    "background_color": "#ffffff",
    "theme_color": "#1a56db",
    "orientation": "portrait-primary",
    "icons": [
        { "src": "/images/icons/icon-72.png",  "sizes": "72x72",   "type": "image/png" },
        { "src": "/images/icons/icon-96.png",  "sizes": "96x96",   "type": "image/png" },
        { "src": "/images/icons/icon-128.png", "sizes": "128x128", "type": "image/png" },
        { "src": "/images/icons/icon-144.png", "sizes": "144x144", "type": "image/png" },
        { "src": "/images/icons/icon-152.png", "sizes": "152x152", "type": "image/png" },
        { "src": "/images/icons/icon-192.png", "sizes": "192x192", "type": "image/png", "purpose": "any maskable" },
        { "src": "/images/icons/icon-384.png", "sizes": "384x384", "type": "image/png" },
        { "src": "/images/icons/icon-512.png", "sizes": "512x512", "type": "image/png", "purpose": "any maskable" }
    ],
    "categories": ["utilities", "education", "finance"],
    "screenshots": [
        { "src": "/images/screenshot-home.jpg", "sizes": "1280x720", "type": "image/jpeg" }
    ]
}