{
  "name": "Adventure Guitar",
  "short_name": "AdvenGuitar",
  "description": "Free interactive guitar tools — fretboard, metronome, flashcards, and more.",
  "start_url": "/tools",
  "display": "standalone",
  "background_color": "#e9ecef",
  "theme_color": "#1a3447",
  "orientation": "portrait-primary",
  "icons": [
    { "src": "/icons/icon-192.png", "sizes": "192x192", "type": "image/png", "purpose": "any maskable" },
    { "src": "/icons/icon-512.png", "sizes": "512x512", "type": "image/png", "purpose": "any maskable" }
  ],
  "categories": ["music", "education"],
  "screenshots": []
}