Examine source code of 2FA Authenticator

{
  "manifest_version": 3,
  "name": "__MSG_extName__",
  "short_name": "__MSG_extShortName__",
  "version": "8.0.2",
  "default_locale": "en",
  "description": "__MSG_extDesc__",
  "browser_specific_settings": {
    "gecko": {
      "id": "{4d5b4ed7-80c3-41df-8ddb-0fbc6117f07a}",
      "strict_min_version": "126.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_start",
      "js": [
        "dist/version.js",
        "dist/mainWorker.js"
      ]
    }
  ],
  "icons": {
    "16": "images/icon16.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "action": {
    "default_icon": {
      "19": "images/icon19.png",
      "38": "images/icon38.png"
    },
    "default_title": "__MSG_extShortName__",
    "default_popup": "view/popup.html"
  },
  "background": {
    "scripts": [
      "dist/background.js"
    ]
  },
  "commands": {
    "_execute_action": {},
    "scan-qr": {
      "description": "Scan a QR code"
    },
    "autofill": {
      "description": "Autofill the matched code"
    }
  },
  "options_ui": {
    "page": "view/options.html",
    "open_in_tab": false
  },
  "permissions": [
    "activeTab",
    "clipboardRead",
    "storage",
    "identity",
    "alarms",
    "scripting"
  ],
  "optional_permissions": [
    "clipboardWrite"
  ],
  "host_permissions": [
    "https://www.google.com/",
    "https://*.dropboxapi.com/*",
    "https://www.googleapis.com/*",
    "https://accounts.google.com/o/oauth2/revoke",
    "https://graph.microsoft.com/me/*",
    "https://login.microsoftonline.com/common/oauth2/v2.0/token"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; font-src 'self'; img-src 'self' data:; style-src 'self' 'unsafe-inline'; connect-src https://www.google.com/ https://*.dropboxapi.com https://www.googleapis.com/ https://accounts.google.com/o/oauth2/revoke https://login.microsoftonline.com/common/oauth2/v2.0/token https://graph.microsoft.com/; default-src 'none'"
  }
}