{
  "name": "The Hallmark Society tools",
  "short_name": "Hallmarks",
  "description": "Read a hallmark, look up a silversmith, date a piece, compare diamond cuts and work out gold content. By The Hallmark Society. Works offline once installed.",
  "start_url": "/tools/read-my-hallmark/",
  "scope": "/tools/",
  "display": "standalone",
  "orientation": "any",
  "background_color": "#eef0f1",
  "theme_color": "#eef0f1",
  "categories": ["reference", "education", "utilities"],
  "icons": [
    { "src": "/assets/icon-192.png", "sizes": "192x192", "type": "image/png", "purpose": "any" },
    { "src": "/assets/icon-512.png", "sizes": "512x512", "type": "image/png", "purpose": "any" },
    { "src": "/assets/icon-maskable.png", "sizes": "512x512", "type": "image/png", "purpose": "maskable" }
  ],
  "shortcuts": [
    {
      "name": "Read my hallmark",
      "short_name": "Read a mark",
      "url": "/tools/read-my-hallmark/",
      "description": "Enter the marks and get country, office, maker and year"
    },
    {
      "name": "Silversmiths directory",
      "short_name": "Silversmiths",
      "url": "/tools/silversmiths-directory/",
      "description": "45,000 makers from eight countries in one search"
    },
    {
      "name": "Date your piece",
      "short_name": "Date it",
      "url": "/tools/date-your-piece/",
      "description": "For pieces with no readable marks"
    },
    {
      "name": "Gold calculator",
      "short_name": "Gold",
      "url": "/tools/gold-calculator/",
      "description": "Fineness to pure metal and melt value"
    }
  ]
}