Examine source code of AltConSys Alerter EBUS

{
  "manifest_version": 2,
  "name": "AltConSys Alerter EBUS",
  "version": "1.4",
  "description": "Alternative Content Alerter for eBay USA",
  "homepage_url": "http://altcon.altconsys.com",
  "icons": {
    "64": "icons/colorwheel-64.png",
    "300": "icons/colorwheel-300.png"
  },
  "permissions": [
    "tabs",
    "notifications",
    "http://*.ebay.com/*",
    "https://*.ebay.com/*",
    "http://*.altconsys.com/*",
    "https://*.altconsys.com/*",
    "https://checkabid.com/*"
  ],
  "browser_action": {
    "default_icon": "icons/colorwheel-64-empty.png",
    "default_title": "Good luck on your search!"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.ebay.com/*",
        "*://*.altconsys.com/*"
      ],
      "js": [
        "jquery.js",
        "showURL.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "jquery.js",
      "background.js"
    ]
  }
}