Examine source code of One App

{
  "chrome_url_overrides": {
    "newtab": "./public/index.html"
  },
  "background": {
    "scripts": [
      "scripts/background.js"
    ],
    "persistent": false
  },
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'; connect-src 'self' https://*.reader.one https://reader.one",
  "description": "All News in One App for Chrome New Tab",
  "icons": {
    "16": "./public/assets/icon_16.png",
    "48": "./public/assets/icon_48.png",
    "128": "./public/assets/icon_128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.reader.one/"
      ],
      "js": [
        "scripts/installed.js"
      ]
    }
  ],
  "manifest_version": 2,
  "name": "Reader One New Tab",
  "permissions": [
    "alarms",
    "storage",
    "https://*.reader.one/"
  ],
  "version": "1.0.0"
}