How to remove gray bar below autocomplete box when selected

On the radzen autocomplete web page, when an autocomplete box is selected, there is a gray bar drawn below the box. This element is outside of visible-focus and I am not able to remove it. How can this be removed?

Screenshot 2022-08-09 170247

A standard html element doesn't have this bar, and focus-visible allows the borders to be styled.

thanks
Rob

This is actually the AutoComplete popup that will display the items when you type but you are right, it should be only on keypress not on focus - it will be fixed in the next update before the end of the week.