Examine source code of Kiosk Extension

{
  "browser_specific_settings": {
    "gecko": {
      "id": "Kiosk@Extension.com",
      "strict_min_version": "115.0"
    }
  },
  "action": {
    "default_icon": {
      "16": "/images/icon_16.png",
      "32": "/images/icon_32.png",
      "48": "/images/icon_48.png",
      "128": "/images/icon_128.png"
    }
  },
  "name": "Kiosk Extension",
  "description": "Enhance the Kiosk Experience",
  "version": "0.0.0.31",
  "manifest_version": 3,
  "content_scripts": [
    {
      "all_frames": false,
      "js": [
        "/modules/jquery.min.js",
        "/modules/kjua-0.9.0.min.js",
        "/js/content.js"
      ],
      "css": [
        "/modules/fontawesome-icons/fontawesome.css",
        "/modules/fontawesome-icons/solid.css",
        "/css/kecss.css"
      ],
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_idle"
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "storage",
    "scripting",
    "webNavigation",
    "declarativeNetRequest",
    "downloads",
    "tabs"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "/modules/CascadiaCode.woff2",
        "/modules/fontawesome-icons/fonts/fa-solid-900.woff2"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "icons": {
    "16": "/images/icon_16.png",
    "32": "/images/icon_32.png",
    "48": "/images/icon_48.png",
    "128": "/images/icon_128.png"
  },
  "options_ui": {
    "browser_style": false,
    "page": "/html/options.html",
    "open_in_tab": true
  }
}