Examine source code of LiveATC Add Topic Link

{
  "manifest_version": 3,
  "name": "LiveATC Add Topic Link",
  "version": "1.2",
  "description": "Adds links to the topics on the LiveATC Recordings page.",
  "developer": {
    "name": "Tim Landscheidt",
    "url": "https://www.tim-landscheidt.de/"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "liveatc-add-topic-link-addon@tim-landscheidt.de",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.liveatc.net/recordings.php"
      ],
      "js": [
        "liveatc-add-topic-link.js"
      ],
      "run_at": "document_end"
    }
  ]
}