manifest.webmanifest

{
  "short_name": "Widgets App",
  "name": "Widgets Sample App (no widget icon)",
  "display": "standalone",
  "display_override": ["window-controls-overlay"],
  "start_url": "./index.html",
  "icons": [
    {
      "src": "icons/500x500.png",
      "sizes": "400x400"
    }
  ],
  "widgets": [
    {
      "name": "Max AC- Single",
      "tag": "max_ac",
      "template": "test",
      "data": "cards/data.json",
      "type": "application/json",
      "ms_ac_template": "cards/test.ac.json",
      "short_name": "Max",
      "description": "A widget that doesn't do much of anything yet.",
      "screenshots": [
        {
          "src": "icons/screenshot.png",
          "sizes": "400x600",
          "label": "Test screenshot"
        }
      ],
      "backgrounds": [
        {
          "src": "icons/background.png",
          "sizes": "600x400"
        }
      ],
      "auth": false,
      "update": 100,
      "actions": [
        {
          "action": "buttonClick",
          "title": "Button Click"
        }
      ]
    },
    {
      "name": "Max AC- Multiple",
      "tag": "max_ac_multiple",
      "template": "test",
      "data": "cards/data.json",
      "type": "application/json",
      "ms_ac_template": "cards/test.ac.json",

      "short_name": "Max",
      "description": "A widget that doesn't do much of anything yet.",
      "screenshots": [
        {
          "src": "icons/screenshot.png",
          "sizes": "600x400",
          "label": "Test screenshot"
        }
      ],
      "backgrounds": [
        {
          "src": "icons/background.png",
          "sizes": "600x400"
        }
      ],
      "auth": false,
      "multiple": true,
      "update": 100,
      "actions": [
        {
          "action": "buttonClick",
          "title": "Button Click"
        }
      ]
    }
  ]
}