UI Kit Builder

{
  "sections": [
    {
      "widgets": [
        {
          "buttonList": {
            "buttons": [
              {
                "text": "More",
                "type": "FILLED",
                "icon": {
                  "materialIcon": {
                    "name": "menu"
                  }
                },
                "onClick": {
                  "overflowMenu": {
                    "items": [
                      {
                        "text": "Open Chat",
                        "startIcon": {
                          "materialIcon": {
                            "name": "chat"
                          }
                        },
                        "onClick": {
                          "openLink": {
                            "url": "https://developers.google.com/chat"
                          }
                        }
                      },
                      {
                        "text": "Open Gmail",
                        "startIcon": {
                          "materialIcon": {
                            "name": "gmail"
                          }
                        },
                        "onClick": {
                          "openLink": {
                            "url": "https://mail.google.com"
                          }
                        }
                      }
                    ]
                  }
                }
              }
            ]
          }
        }
      ]
    }
  ]
}