Examine source code of Tracking Panda

{
  "browser_action": {
    "default_icon": "icons/icon19.png",
    "default_title": "Tracking Panda"
  },
  "background": {
    "scripts": [
      "js/Background/background.js",
      "js/Background/googleanalytic.js"
    ]
  },
  "chrome_url_overrides": {
    "newtab": "html/index.html"
  },
  "description": "Track your packages realtime and automatically notified when the shipping status is changed",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "manifest_version": 2,
  "default_locale": "en",
  "name": "Tracking Panda",
  "short_name": "Tracking Panda",
  "permissions": [
    "management",
    "storage"
  ],
  "version": "1.1.2resigned1",
  "browser_specific_settings": {
    "gecko": {
      "id": "{a840c22e-1311-4b2e-bfba-e90e375b520a}"
    }
  }
}