Examine source code of Outlook Clean

{
  "manifest_version": 3,
  "name": "OutlookClean",
  "version": "1.1.2",
  "description": "Elimina la publicidad de la aplicación web de Outlook",
  "icons": {
    "48": "icons/icono-48.png",
    "96": "icons/icono-96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://outlook.live.com/*"
      ],
      "js": [
        "outlookclean.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{eaae0c11-07ee-4d7a-b833-6956737d4da7}"
    }
  }
}