I'm not sure is this issue related to your mod, if not - sorry for this issue.
After adding Infinitory mod into mods folder, items count font is very small and items counts are almost unreadable.
Another mod with similar functionality (Stacker) gives the possibility to autoscale font or set it size explicitly.
It would be nice to have such possibility in your mod.

Thanks.

OK, I researched this issue a little bit futher (and changed issue's header accordingly).

1. Testing with mods versions:

• fabric-api-0.43.1+1.17
• Infinitory-Fabric-1.17.1-1.2.2
• Fabric Loader 0.12.8

All tests was made in fullscreen mode, on 24'' display.

If I set Unicode to "OFF" and set Interface size to "Auto", 2, 3, 4, 5, 6 - inventory items count is readable, it's OK.
If I set Unicode to "OFF" and set Interface size to 1 - inventory items count font is too small.

If I set Unicode to "ON" and set Interface size to 1, 2 - inventory items count is too small.
If I set Unicode to "ON" and set Interface size to 3, 4, 5, 6 - inventory items count is readable, it's OK.

At the same time, if I remove plugin, every case (regardless of Unicode is ON or OFF, regardless of Interface size set) all inventory items count are readable.

Some other mods with similar functions (f.e. Stacker: https://www.curseforge.com/minecraft/mc-mods/stacker) do allow font size changing. May be your mod also can introduce this feature?

BTW when I started testing with fabric-api-0.44.0+1.17, first time I was unable to autopickup items and move items from chest to inventory (items was just not "pasted" into inventory slots). After I restarted game with fabric-api-0.43.1+1.17, everything went fine (I saved a game from fabric-api-0.43.1+1.17 with items in my inventory). Then I replaced fabric-api-0.43.1+1.17 with fabric-api-0.44.0+1.17 and everything went fine. I don't know is this a mod issue, just FYI.