Hello there!
A client recently asked me about customizing underline and strikethrough values (stroke thickness and position) on a typeface. Even though I knew it was possible, I’ve always heard most apps didn’t really use these custom values.
I couldn’t find much information about this online, so I decided to do a little research to pinpoint what works and what does not in a handful of apps. Just thought to post it here in case it might be helpful to someone else: https://www.harbortype.com/blog/the-state-of-underlines-and-strikethroughs/
Cheers!