RadzenNumeric missing "focus" formatting

In the Radzen DropDown, DatePicker, and TextBox controls, whenever the control has focus, the outline of the control is darkened as so:
image

..it appears that RadzenNumeric is missing this, as the outline does not darken when it has focus:
image

Is this a bug, or is there a parameter I am missing?

We will do our best to provide fix for this soon.