Examine source code of Lytho Environment Banner

{
  "manifest_version": 3,
  "name": "Lytho Environment Banner",
  "version": "1.0",
  "description": "Displays environment banner for Lytho domains",
  "content_scripts": [
    {
      "matches": [
        "*://*.golytho.com/*",
        "*://*.golytho.us/*",
        "*://*.lytho.io/*",
        "*://*.lytho.us/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "lytho_environment_banner_extension@lytho.com"
    }
  }
}