Examine source code of GoCharting Cleanup

{
  "manifest_version": 3,
  "name": "Ad Frame Remover",
  "version": "1.31",
  "description": "Removes specific ad frames from gocharting.com.",
  "host_permissions": [
    "https://gocharting.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://gocharting.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "gocharting-mortefix@tuta.com",
      "strict_min_version": "91.0"
    }
  }
}