Examine source code of Toolibo - Developer Toolbox

{
  "manifest_version": 3,
  "name": "Toolibo Developer Toolbox",
  "short_name": "Toolibo Developer",
  "version": "1.0.0",
  "description": "The ultimate developer toolbox - 80+ tools for formatting, encoding, crypto, colors, networking, and more. 100% offline.",
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@toolibo.ir",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "strict_min_version": "109.0"
    }
  },
  "permissions": [
    "storage",
    "clipboardWrite",
    "clipboardRead"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "Toolibo Developer Toolbox"
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "service_worker": "background.js"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  }
}