Examine source code of Goocoucou

{
  "manifest_version": 2,
  "name": "Goocoucou",
  "version": "2.0.1",
  "author": "FOBshippingpoint",
  "description": "__MSG_extension_description__",
  "homepage_url": "https://github.com/FOBshippingpoint/goocoucou-webext",
  "icons": {
    "16": "icon-16.47cda0b4.png",
    "64": "icon-64.7054d7a5.png"
  },
  "browser_action": {
    "default_icon": "icon-16.47cda0b4.png",
    "default_popup": "popup.684bda01.html"
  },
  "options_ui": {
    "page": "options.893ba187.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "background.b18b9430.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.google.com/*"
      ],
      "js": [
        "content-scripts.27d0cafe.js"
      ],
      "css": [
        "style.ba60c236.css"
      ]
    }
  ],
  "default_locale": "en",
  "permissions": [
    "activeTab",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{3a73e36a-df88-4ede-9b00-d3caca96ce73}"
    }
  }
}