rounded String(default: "medium")

Sets a value controlling the border radius. Can also be set to the following string values:

• "none"
• "small"
• "medium"
• "large"
• "full"

Example - set large border radius

<input id="ddt" />
<script>
$("#ddt").kendoDropDownTree({
  dataSource: [
      { text: "Chai", value: 1 },
      { text: "Chang", value: 2 },
      { text: "Tofu", value: 3 }
  ],
  rounded: "large"
});
</script>