chromium/chrome/test/data/webapps_integration/tabbed/home_tab.json

{
  "name": "Tabbed with home tab",
  "icons": [
    {
      "src": "192x192-red.webp",
      "sizes": "192x192",
      "type": "image/webp"
    },
    {
      "src": "256x256-red.webp",
      "sizes": "256x256",
      "type": "image/webp"
    }
  ],
  "start_url": "/webapps_integration/tabbed/basic.html?manifest=home_tab.json",
  "scope": "/webapps_integration/tabbed/",
  "display": "standalone",
  "display_override": ["tabbed"],
  "tab_strip": {
      "home_tab": {
        "scope_patterns": [{"pathname": "/webapps_integration/tabbed/sub_page_3.html"}]
      },
      "new_tab_button": {
        "url": "/webapps_integration/tabbed/sub_page_1.html"
      }
  }
}