{  "name": "Radio LowCost",  "short_name": "LowCost",  "description": "Radio online corporativa de LowCost",  "start_url": "/",  "display": "standalone",  "background_color": "#1a1a2e",  "theme_color": "#1a1a2e",  "orientation": "portrait",  "icons": [    {      "src": "img/icon-192.png",      "sizes": "192x192",      "type": "image/png"    },    {      "src": "img/icon-512.png",      "sizes": "512x512",      "type": "image/png",      "purpose": "any maskable"    }  ]}