@amy @hnb Besides #OpemDyslexic I can recommend #LEXEND and #B612 as fonts optimized for legibility and ease of reading.
https://github.com/KBtechnologies/fonts/blob/ed20dce95e0ac18e57331ac921a70c8776b0b585/INDEX.tsv#L13
LEXEND is mostly intended for educational texts like schoolbooks whereas B612 was designed and developend for Airbus so it got tested to hell for legibility in adverse conditions in Aerospace applications.
Both are SIL OFL licensed and basically support all styles ome would ever demand.
