Examine source code of YouTube Transcript Copier

{
  "manifest_version": 2,
  "name": "YouTube Transcript Copier",
  "version": "1.0",
  "description": "Copie le transcript des vidéos YouTube",
  "permissions": [
    "activeTab",
    "clipboardWrite",
    "*://*.youtube.com/*"
  ],
  "browser_action": {
    "default_icon": "icons/icon-48.png",
    "default_title": "YouTube Transcript Copier"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{48586e8f-b6b9-408d-bfc2-fb51101fed94}"
    }
  }
}