manifest.json

{
  "name": "Prototype",
  "short_name": "Prototype",
  "description": "Front-End Prototyping Tool",
  "author": {
    "name": "Craig Wayne"
  },
  "start_url": "/",
  "externals": ["/"],
  "display": "fullscreen",
  "theme_color": "#215A6D",
  "background_color": "#215A6D",
  "manifest_version": 2,
  "icons": [
    {
      "src": "assets/images/nexus_prototype.png",
      "type": "image/png",
      "sizes": "128x128"
    },
    {
      "src": "assets/images/nexus_prototype-192x192.png",
      "type": "image/png",
      "sizes": "192x192"
    },
    {
      "src": "assets/images/nexus_prototype-512x512.png",
      "type": "image/png",
      "sizes": "512x512"
    }
  ],
  "version": "1.0",
  "app": {
    "background": {
      "scripts": [
        "assets/js/background.js"
      ]
    }
  },
  "offline_enabled": true,
  "permissions": [
    "storage",
    "fileSystem",
    "unlimitedStorage",
    "http://*/",
    "https://*/"
  ]
}