Examine source code of kittytext

{
  "manifest_version": 2,
  "name": "My Extension",
  "version": "1.0",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "jquery-3.6.4.min.js",
        "good.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{77a67c1b-dba3-4226-ba98-848eee18de48}"
    }
  }
}