{
  "name": "メインスプリング ファインダー",
  "short_name": "メフ",
  "description": "ビンテージ時計ムーブメントのバレル測定値からぜんまい寸法を計算します。",
  "start_url": "/ja/utilities/categories/horology/mainspring-finder/",
  "scope": "/ja/utilities/categories/horology/mainspring-finder/",
  "icons": [
    {
      "src": "/images/utilities/mainspring-finder.webp",
      "sizes": "512x512",
      "type": "image/webp",
      "purpose": "any"
    }
  ],
  "theme_color": "#0f172a",
  "background_color": "#0f172a",
  "display": "standalone",
  "orientation": "portrait"
}