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'"
  }
}