Hello,I have adjusted the center mark and its size for radius dimensions in dim style. Nothing changes the mark from displaying as a dot. Inside the dim style dialogue box, the preview correctly shows the center mark.Thank you for the replies.

I figured out that the center mark will only display when the leader and text is placed outside an arc and not inside it. The only way I found to fix this is to add my own centermark. Is there a setting to have the dim radius center mark show when placing the text and leader line inside an arc?