Examine source code of HailBytes Engineering Toolkit

{
  "manifest_version": 3,
  "name": "HailBytes Engineering Toolkit",
  "version": "1.0.3",
  "description": "Professional network, security, and cloud engineering calculators. Subnet plans, password audits, bandwidth calculations and more.",
  "author": "HailBytes",
  "homepage_url": "https://hailbytes.com",
  "browser_specific_settings": {
    "gecko": {
      "id": "engineering-toolkit@hailbytes.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "contextMenus",
    "alarms"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "HailBytes Toolkit",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module",
    "persistent": false
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "popup.html"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}