How to change <li> font size (bullet lists)

I’m sure this is a very basic question, but it has stumped me so far.

I have changed the font and font size through Appearance>Customize>General and also through Typography>Default Typography>Paragraphs to change the font.

This has mostly updated the font and font size throughout the site, but the font and font size for bullet lists does not seem to be updating.

You can see the issue with the bullets on this page: KPI Trees - How to build one - Made to Measure KPIs

Any ideas on what is controlling the bullet size and font will be appreciated!