Examine source code of Quizlet Automator

{
  "manifest_version": 2,
  "name": "Quizlet Automator",
  "description": "This extension automatically completes Quizlet's 'Write Mode', 'Learn Mode', and 'Test Mode'",
  "version": "0.3.2resigned1",
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html",
    "default_title": "QA Options"
  },
  "permissions": [
    "storage",
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://quizlet.com/*"
      ],
      "js": [
        "jquery-3.1.1.min.js",
        "script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{8d50c190-41a0-464d-8aa4-9a4c2afbbf6c}"
    }
  }
}