@markhillyer
Thank you for reporting this issue with the font weight of the footnote numbers in the list. The relevant CSS selector is .footnote_plugin_index, and to fix it please add the following rule to your Custom CSS:
.footnote_plugin_index {font-weight: normal;}
The reason of the bold is that after the accessibility bug fixes included in 2.5.11 about applying web semantics in the reference container to improve readability for assistive technologies, thanks to @derivationfr issue report and code contribution, I did not neutralize all style rules applied by themes to table headers. The thorough investigation conducted in https://a11y-101.com/development/tables points out that screen readers are unable to make sense of tables on their own, and only spell out tables correctly on the condition that the tables use HTML markup as intended.
Thanks for reaching out to get this fixed, as the bold numbers are unexpected. I’m confident that the plugin developers monitoring this forum will pick this up and include it in the next release.
