I've noticed that when using stack size changing mods (i.e. Noxys StackSizeMultiplier), the tooltip will still display the vanilla stack size value rather than the actual modded ones.

I figured the easiest "fix" would be changing your mod's name to something like zzz-always-show-stack-size which will push it all the way to the last spot in the mod load order. Otherwise you would have to add all kinds of stack size mods as an "? optional dependency" which is beyond any reasonable effort of compatibility maintenance.

Honestly I'll probably just drop this mod - turns out there's already mods that provide such information and more in tooltips, so this is kind of redundant!