First of all, thanks for this amazing mod.
After playing it for a few hours, I want to give some feedback.
As others pointed out, the UI is a bit too big on low resolutions, and I think that's what's causing the merchant inventory to not appear when the crafting grid is active, since there's not enough space for both.
Other than that, I'd love to see a bigger variety of magical glyphs. They're great and having even more combinations to experiment with would be awesome.
And I also have a suggestion: Add a way to combine weapons. For instance, if you have a weapon that does cold damage but you want it to do fire damage instead, you could sacrifice the second weapon to change the element of the first one. Not sure how hard it would be to implement, but it's just a suggestion, the mod is already great as it is now.