Examine source code of quickJoke

{
  "name": "quickJoke",
  "description": "A joke upon demand out of selected collection from the top-shelf comedians.",
  "version": "1.1.0",
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "quickJoke@alexsdev.com"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "scripting",
    "storage"
  ],
  "action": {
    "default_title": "quickJoke",
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icon-48.png",
      "96": "icon-96.png"
    }
  },
  "icons": {
    "48": "icon-48.png",
    "96": "icon-96.png"
  }
}