chromium/chrome/test/data/banners/manifest_window_controls_overlay.json

{
  "name": "Manifest with Window Controls Overlay",
  "icons": [
    {
      "src": "launcher-icon-4x.png",
      "sizes": "192x192",
      "type": "image/png"
    }
  ],
  "start_url": "manifest_test_page.html",
  "display": "standalone",
  "display_override": [ "window-controls-overlay" ]
}