If anyone want's to hack on this but needs help finding where to start, whom to speak with or similar – starting this week there is now a weekly Technical Advice IRC meeting open for all volunteer developers: https://www.mediawiki.org/wiki/Technical_Advice_IRC_Meeting

Hello @Debenben!

I created his task and its subtasks because the wish was in our 2017 Wishlist Survey and didn't become a top wish – but it seemed like a doable project for volunteers:

https://phabricator.wikimedia.org/T172865 - Fix formatting issues with mathematic formulas: remove wrong bold formatting
https://phabricator.wikimedia.org/T172867 - Fix formatting issues with mathematic formulas: fix baseline and font size
https://phabricator.wikimedia.org/T172868 - Fix formatting issues with mathematic formulas: remove wrong line spacing
https://phabricator.wikimedia.org/T172873 - Fix formatting issues with mathematic formulas: fix display of special characters

Now I'm pinging you because there are questions in some of the subtasks, e.g. how to reproduce the described problems. Could you add the information that's missing in my description?

Best,
Johanna

As a MathJax team member, I'm not sure T172873 is really doable by a volunteer. The only option that doesn't require MathJax devs to do something would be to switch mathoid to use a different font (e.g., STIX, Latin Modern) which seems to require consideration from WMF (and the community) ; some visual regression testing would then seem wise in that case.