Examine source code of WhatsApp Chat Export

{
  "manifest_version": 3,
  "name": "__MSG_extName__",
  "description": "__MSG_extDescription__",
  "version": "0.5.1",
  "default_locale": "en",
  "permissions": [
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "https://web.whatsapp.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://web.whatsapp.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "__MSG_popupTitle__",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; connect-src https://license.walter.berlin; img-src 'self' data:; style-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "chatbeweis@walter.berlin",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}