Examine source code of SearchTooLong

{
  "manifest_version": 2,
  "name": "SearchTooLong",
  "version": "1.1",
  "description": "When google search is too big",
  "icons": {
    "48": "icons/icon.PNG"
  },
  "permissions": [
    "activeTab",
    "menus",
    "search",
    "webRequest"
  ],
  "browser_action": {
    "default_icon": "icons/icon.PNG",
    "default_title": "SearchTooLong",
    "default_popup": "popup/window.html"
  }
}