{
  "name": "SpectraSign",
  "short_name": "SpectraSign",
  "description": "Frequency-domain image watermarking toolkit. Sign your digital works and trace sources easily.",
  "categories": ["utilities", "productivity", "graphics"],
  "start_url": "image_sign.html",
  "scope": "./",
  "display": "standalone",
  "background_color": "#0f172a",
  "theme_color": "#38bdf8",
  "orientation": "portrait",
  "icons": [
    {
      "src": "icon-192.png",
      "sizes": "192x192",
      "type": "image/png",
      "purpose": "any maskable"
    },
    {
      "src": "icon-512.png",
      "sizes": "512x512",
      "type": "image/png",
      "purpose": "any maskable"
    },
    {
      "src": "icon.jpg",
      "sizes": "512x512",
      "type": "image/jpeg",
      "purpose": "any"
    }
  ],
  "shortcuts": [
    {
      "name": "Sign Image",
      "url": "image_sign.html?mode=sign",
      "icons": [{ "src": "icon.jpg", "sizes": "192x192", "type": "image/jpeg" }]
    },
    {
      "name": "Extract Watermark",
      "url": "image_sign.html?mode=extract",
      "icons": [{ "src": "icon.jpg", "sizes": "192x192", "type": "image/jpeg" }]
    }
  ]
}