QtQuick.Controls: Native Tooltip size on macOS

import QtQuick
import QtQuick.Controls

Window {
  width: 640
  height: 480
  visible: true
  title: qsTr("Hello World")

  Button {
    text: "Hover me"
    Component.onCompleted: {
      ToolTip.toolTip.popupType = Popup.Native
    }

    ToolTip.visible: hovered
    ToolTip.text: "This is a ToolTip"
  }
}