Examine source code of Logify - Parental Control

{
  "manifest_version": 2,
  "author": "author",
  "name": "Logify - Parental Control",
  "version": "4.0",
  "description": "fully integrated with Logify Apps",
  "permissions": [
    "http://logify-app.com/",
    "background"
  ],
  "icons": {
    "16": "logos/icon_16.png",
    "48": "logos/icon_48.png",
    "128": "logos/icon_128.png"
  },
  "background": {
    "scripts": [
      "src/API.js",
      "src/background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "html/index.html"
  },
  "incognito": "spanning",
  "web_accessible_resources": []
}