chromium/chrome/test/data/extensions/api_test/preference/lacros_secondary_profile_read/manifest.json

{
  "name": "Lacros Extension Preferences API Test Extension",
  "version": "0.1",
  "manifest_version": 2,
  "description": "Lacros extension controlled pref API Test Extension",
  "permissions": ["accessibilityFeatures.read", "privacy"],
  "background": {
    "scripts": ["test.js"],
    "persistent": false
  }
}