Thank you for bringing us this mod. I apologise for the possible semantic ambiguity caused by the use of automatic translation.
Can I customise the size of the number in the bottom left corner of the grid? I can only see the number clearly if I resize the interface to 3 (turn on forced unicode characters, because I play in Chinese), but that's too big a size for my monitor! I don't want to change the fonts using a mod like Modern UI because I think the fonts that come with it are the best for this game. If the grid size of the interface is the same as the shortcut bar, why not use the same size numbers as the shortcut bar? (I'm guessing if it's just too many digits to be aesthetically pleasing?)
In the end, this is a really great mod, and in other ways I think it's pretty much perfect, so hopefully my issues will be resolved to better experience it for what it is.

In addition to the text being quite hard to read, the specific font size is causing the numbers to render inconsistently. You can see in the second screenshot that some of the characters are thicker than others, which happens because the font scale isn't pixel-perfect

I got the build working. It becomes obvious pretty quickly why you can't have the stack counter at full size:

But still, at gui scale 3 using a scaleFactor of 0.6666* will get you a much cleaner font:

The main problem is the scaleFactor would need to be different for each UI size to work properly. 0.66* at gui scale 3, 0.5 at 2, 1.0 at 1, etc.