{
  "name": "PipingPro Academy — Engineering Calculators",
  "short_name": "PipingPro",
  "description": "Piping & pipeline engineering calculators — works offline at site.",
  "start_url": "/calculators/",
  "display": "standalone",
  "orientation": "any",
  "background_color": "#0f172a",
  "theme_color": "#1e40af",
  "categories": ["utilities", "education", "productivity"],
  "icons": [
    {
      "src": "/images/icons/ppa-icon-192.png",
      "sizes": "192x192",
      "type": "image/png",
      "purpose": "any maskable"
    },
    {
      "src": "/images/icons/ppa-icon-512.png",
      "sizes": "512x512",
      "type": "image/png",
      "purpose": "any maskable"
    }
  ]
}