chromium/chrome/test/data/chromeos/app_mode/apps_and_extensions/kiosk_base_test_app/src/manifest.json

{
  "manifest_version": 3,
  "name": "Kiosk Base Test App",
  "version": "1.0.0",
  "icons": {
    "128": "icon-128.png",
    "16": "icon-16.png"
  },
  "app": {
    "background": {
      "scripts": ["main.js"]
    }
  },
  "kiosk_enabled": true
}