Examine source code of Google Lens Redirect

{
  "manifest_version": 2,
  "name": "Google SearchByImage → Google Lens Redirect",
  "version": "1.2",
  "description": "Перенаправляет старые ссылки searchbyimage?image_url=… на Google Lens",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "*://*.google.com/searchbyimage*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "google-lens-redirect@example.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}