chromium/chrome/test/data/webapps_integration/standalone/manifest_tabbed.json

{
    "name": "Site A",
    "icons": [
      {
        "src": "48x48-green.png",
        "sizes": "48x48",
        "type": "image/png"
      },
      {
        "src": "128x128-green.png",
        "sizes": "128x128",
        "type": "image/png"
      },
      {
        "src": "192x192-green.png",
        "sizes": "192x192",
        "type": "image/png"
      },
      {
        "src": "256x256-green.png",
        "sizes": "256x256",
        "type": "image/png"
      }
    ],
    "start_url": "/webapps_integration/standalone/basic.html",
    "scope": "/webapps_integration/standalone/",
    "display": "standalone",
    "display_override": [
      "tabbed"
    ]
  }