Examine source code of Search Center

{
  "background": {
    "scripts": [
      "js/common.js",
      "js/engines.js",
      "js/engine.js",
      "js/engineGroup.js",
      "js/imageCache.js",
      "js/notify.js",
      "js/search.js",
      "background.html"
    ]
  },
  "browser_action": {
    "default_icon": "images/spinWorld.png",
    "default_popup": "popup.html",
    "default_title": "Search Center"
  },
  "content_scripts": [
    {
      "js": [
        "contentScripts/mycroft.js"
      ],
      "matches": [
        "http://mycroft.mozdev.org/*"
      ],
      "run_at": "document_end"
    }
  ],
  "description": "Quickly Search & re-search multiple sites without having to type your search terms again and again",
  "icons": {
    "128": "images/spinWorld.png"
  },
  "key": "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDrFhffvUM+gfYdrGgQKklouN5I7+F5wviPPJKNQ0F0Y9r175/dzdNXeNCB4m73wK/VsrX6CF5pw2Ru+21svis8VGoPRZ8u9knqyn3eeUpjE0WjVPcndTNJ/8s+wBCFyZkCBTfcEiHeYm+B/6ycnPpzR13i9XNLhqTG/ymj/RkwbwIDAQAB",
  "manifest_version": 2,
  "minimum_chrome_version": "6",
  "name": "Search Center",
  "options_page": "options.html",
  "permissions": [
    "contextMenus",
    "tabs",
    "http://*/*",
    "https://*/*",
    "chrome://favicon/"
  ],
  "update_url": "http://clients2.google.com/service/update2/crx",
  "version": "4.0.1",
  "web_accessible_resources": [
    "images/spinWorld.png"
  ]
}