Remove Icons

Is it possible to remove the icons altogether in a timeline?
I have not inserted an icon but I get a colour dot where the icon should be – can I remove this but keep the edge colour of the box.

class=”timeline-icon icon-dot-full aos-init aos-animate”

I have set the icons to “No” in the shortcode.
[cool-timeline layout=”compact” animation=”fade-up” date-format=”Y” icons=”NO” show-posts=”20″ skin=”clean” order=”DESC” story-content=”short”]