{ "name": "Twice!", "short_name": "Twice!", "description": "Find the duplicated icon!", "start_url": "index.html", "display": "fullscreen", "orientation": "landscape", "background_color": "#000000", "icons": [ { "src": "icons/icon-16.png", "sizes": "16x16", "type": "image/png" }, { "src": "icons/icon-32.png", "sizes": "32x32", "type": "image/png" }, { "src": "icons/icon-64.png", "sizes": "64x64", "type": "image/png" }, { "src": "icons/icon-128.png", "sizes": "128x128", "type": "image/png" }, { "src": "icons/icon-256.png", "sizes": "256x256", "type": "image/png" }, { "src": "icons/icon-512.png", "sizes": "512x512", "type": "image/png" } ] }