I use OpenDyslexic3 to override my system font in Windows 10. This works great, except the time in the toolbar uses the ratio symbol to separate hours from minutes, and the symbol (U+2236) isn't yet included in the font.
I downloaded FontForge and edited in a ratio symbol for myself, but I'm unusually willing to experiment and this definitely isn't normal end user behavior, so it would be nice if this character in particular could be added to future releases for other people who might want to use it as a system font. (10/10 improved computer experience, do recommend, btw.) The system uses the BOLD version in particular to display the time.