{ "name": "RJ 동네 당구장", "short_name": "RJ 당구장", "start_url": "/", "display": "fullscreen", "orientation": "landscape",
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  "icons": [ { "src": "icon-192.png", "sizes": "192x192", "type": "image/png" }, { "src": "icon-512.png", "sizes": "512x512", "type": "image/png" } ] }