{
  "name": "メトロ・ウォーカー・クエスト",
  "short_name": "メトロ散歩",
  "description": "東京メトロの駅間を楽しく歩くためのアプリ。",
  "start_url": "/",
  "display": "standalone",
  "background_color": "#ffffff",
  "theme_color": "#000000",
  "icons": [
    {
      "src": "https://picsum.photos/seed/metro/192/192",
      "sizes": "192x192",
      "type": "image/png"
    },
    {
      "src": "https://picsum.photos/seed/metro/512/512",
      "sizes": "512x512",
      "type": "image/png"
    }
  ]
}