Have the Keybinds shown in allcaps (like it has been ever since) instead of lowercase.
That would make certain keybinds more readable.
Not sure if this even needs an option to be disabled, but probably wouldn't hurt, just in case ;D

I don't specify lowercase or uppercase. mojang changed it all to lowercase in 1.13.

That's why the suggestion, since it would fit into a mod that improves the keybind menu.