Sets a value controlling how the color is applied. When undefined (the default), the theme controls the default fill mode. Can also be set to the following string values:

• "solid"
• "flat"
• "outline"

The "none" value is deprecated. Use custom CSS instead.

Example - sets the fillMode

<input id="combobox"/>
<script>
  $("#combobox").kendoComboBox({
    dataSource: [
      { id: 1, name: "Apples" },
      { id: 2, name: "Oranges" }
    ],
    dataTextField: "name",
    dataValueField: "id",
    fillMode: "flat"
  });
</script>