Examine source code of NotebookLM Jetpack

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "1.7.12",
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "default_locale": "en",
  "license": "MIT",
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "scripting",
    "contextMenus",
    "downloads",
    "webRequest",
    "https://notebooklm.google.com/*",
    "https://claude.ai/*",
    "https://platform.claude.com/*",
    "https://www.youtube.com/*",
    "<all_urls>"
  ],
  "externally_connectable": {
    "matches": [
      "https://developer.chrome.com/*",
      "http://localhost/*"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "notebooklm-jetpack@xeonmobius"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "NotebookLM Jetpack",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://chat.openai.com/*",
        "https://chatgpt.com/*"
      ],
      "run_at": "document_idle",
      "js": [
        "content-scripts/chatgpt.js"
      ]
    },
    {
      "matches": [
        "https://claude.ai/*"
      ],
      "run_at": "document_idle",
      "js": [
        "content-scripts/claude.js"
      ]
    },
    {
      "matches": [
        "https://gemini.google.com/*"
      ],
      "run_at": "document_idle",
      "js": [
        "content-scripts/gemini.js"
      ]
    },
    {
      "matches": [
        "https://notebooklm.google.com/*"
      ],
      "run_at": "document_idle",
      "js": [
        "content-scripts/notebooklm.js"
      ]
    }
  ]
}