When rendering <math> formulas, some special characters are displayed wrong.
Examples are given in the original wish: https://de.wikipedia.org/wiki/Wikipedia:Umfragen/Technische_Wünsche_2017/Lesen#Follow-up_zu_dem_Wunsch_Schriftgröße_mathematischer_Formeln_vereinheitlichen, section "Anmerkungen":
It says here that characters like the ü in "für alle"
- <math>\text{für alle}</math>
or the "Å"
- <math>\AA</math>
should look like they do outside of the <math> markup
or like they do when created with workarounds like
- {\displaystyle \mathrm {f{\ddot {u}}r\ alle} } for ü
- or {\displaystyle {\overset {\circ }{\mathrm {A} }}} for Å
This issue seems to occur in SVG rendering.
This ticket is tagged as Need-volunteer, e.g. to be tackled during the Wikimania Hackathon 2017.