Examine source code of Banana Time

{
  "manifest_version": 2,
  "name": "Banana Time Dev",
  "version": "1.0.2",
  "description": "Simplifies time reporting in the IFS system by allowing the user to specify worked hours instead of start and stop time.",
  "icons": {
    "48": "icons/banana-48.png"
  },
  "permissions": [
    "activeTab",
    "webRequest",
    "cookies",
    "storage"
  ],
  "browser_action": {
    "default_icon": "icons/banana-48.png",
    "default_title": "Banana Time Dev",
    "default_popup": "popup/popup.html"
  },
  "options_ui": {
    "page": "options.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "bananaTime@example.com"
    }
  }
}