chromium/chrome/test/data/extensions/api_test/extension_action/action_persistence/manifest.json

{
  "name": "Action persistence check",
  "version": "0.1",
  "manifest_version": 3,
  "background": { "service_worker": "worker.js" },
  "action": {
    "default_popup": "default_popup.html",
    "default_title": "default title"
  },
  "permissions": ["storage"]
}