Examine source code of Focus input element

{
  "manifest_version": 3,
  "name": "Focus input element",
  "version": "1.5.6",
  "description": "Focuses on the next or previous HTML input element when the shortcut key is pressed.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{8221b638-0d82-43e0-a040-0e19dc0397d7}",
      "strict_min_version": "109.0"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "19": "icons/icon-19.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "all_frames": true,
      "run_at": "document_end",
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "js/contentScript.bundle.js"
      ]
    }
  ],
  "options_ui": {
    "open_in_tab": true,
    "page": "options.html"
  }
}