{
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  "short_name": "wp.rt.ht",
  "start_url": "/",
  "description": "Web Push Notifications",
  "display": "standalone",
  "background_color": "#ffffff",
  "screenshots": [
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      "sizes": "1200x630",
      "type": "image/png"
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  ],
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      "type": "image/png",
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    },
    {
      "src": "512.png",
      "sizes": "512x512",
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    }
  ]
}