{
  "name": "Signal Spectrum - Interactive Signal Processing",
  "short_name": "Signal Spectrum",
  "description": "Interactive signal processing visualization tool for educational purposes",
  "start_url": "/",
  "display": "standalone",
  "display_override": ["window-controls-overlay", "standalone", "minimal-ui"],
  "background_color": "#f8fafc",
  "theme_color": "#475569",
  "orientation": "any",
  "categories": ["education", "utilities", "productivity"],
  "lang": "en",
  "dir": "ltr",
  "scope": "/",
  "icons": [
    {
      "src": "/icon-192.png",
      "sizes": "192x192",
      "type": "image/png",
      "purpose": "any"
    },
    {
      "src": "/icon-512.png", 
      "sizes": "512x512",
      "type": "image/png",
      "purpose": "any"
    },
    {
      "src": "/icon-120.png",
      "sizes": "120x120",
      "type": "image/png",
      "purpose": "any"
    },
    {
      "src": "/icon-152.png",
      "sizes": "152x152",
      "type": "image/png",
      "purpose": "any"
    },
    {
      "src": "/icon-167.png",
      "sizes": "167x167",
      "type": "image/png",
      "purpose": "any"
    },
    {
      "src": "/apple-touch-icon.png",
      "sizes": "180x180", 
      "type": "image/png",
      "purpose": "any"
    },
    {
      "src": "/icon-192.png",
      "sizes": "192x192",
      "type": "image/png",
      "purpose": "maskable"
    },
    {
      "src": "/icon-512.png",
      "sizes": "512x512", 
      "type": "image/png",
      "purpose": "maskable"
    },
    {
      "src": "/icon-1024.png",
      "sizes": "1024x1024",
      "type": "image/png",
      "purpose": "any"
    }
  ],
  "shortcuts": [
    {
      "name": "Sinusoidal Signal",
      "short_name": "Sine Wave",
      "description": "Quick access to sinusoidal signal",
      "url": "/?signal=sinusoidal",
      "icons": [{"src": "/icon-192.png", "sizes": "192x192"}]
    },
    {
      "name": "Custom Equation",
      "short_name": "Custom",
      "description": "Create custom signal equations",
      "url": "/?operation=custom-equation", 
      "icons": [{"src": "/icon-192.png", "sizes": "192x192"}]
    }
  ],
  "screenshots": [
    {
      "src": "/screenshot-wide.png",
      "sizes": "1280x720",
      "type": "image/png",
      "form_factor": "wide",
      "label": "Signal processing interface on desktop"
    },
    {
      "src": "/screenshot-narrow.png", 
      "sizes": "640x1136",
      "type": "image/png",
      "form_factor": "narrow",
      "label": "Mobile signal processing interface"
    }
  ]
}