"Show Bigger" does not affect app font size

I have created courses in traditional Chinese, Biblical Hebrew, and Aramaic, all of which contain small marks that are difficult to distinguish in the default font size. I have checked the “show bigger” option, which makes them much more readable on the desktop version. But this doesn’t change the font size on the app. The app’s font is small and hard to read (which is an issue on its own). Please fix this.

No reply, to a simple question. Crickets?