Examine source code of YouTube Summary Generator

{
  "manifest_version": 2,
  "name": "YouTube Summary Generator",
  "version": "1.1",
  "description": "Opens Gemini AI for YouTube video summaries",
  "permissions": [
    "https://www.youtube.com/*",
    "clipboardWrite"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/feed/subscriptions*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{43743f86-9e73-4f8b-b38f-fab364b9c30b}"
    }
  }
}