I made a spear, in blochbench, it's very beautiful, especially in 3D model in the player's hand in first and third person. However, its icon on the hotbar and on screens(GUIs) in general is tiny and dimly lit and ugly.

I found a way to use different textures: one for the model in the player's hand and another for the guis. But the number of JSONs tripled!

Could someone tell me how to use different textures for GUIs in the same JSON file? I've tested it in different ways:

display {gui {par

well trident has a separate texture for inventory.  i can't say more without making a test mod, nor can others.

if you give us a github link, maybe someone will be able to say more.

general hint: if you need to adjust the item variants (1st person left, 1st person right hand, on ground, inventory, 3rd person...) get a mod called "itemtransformhelper" and do it in-game, then paste into your json. mostly useful for blocks and occasional weapon.