Examine source code of YouTube Sidebar Utility

{
  "manifest_version": 2,
  "name": "YouTube Guide Section Swapper",
  "version": "1.0",
  "description": "Swap the first two ytd-guide-section-renderer.style-scope elements on YouTube pages.",
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/*",
        "*://youtube.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "permissions": [
    "*://www.youtube.com/*",
    "*://youtube.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "ahmedh712@addons.mozilla.org",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional_permissions": []
      }
    }
  }
}