
Functional UI
The developer of this mod aimed to introduce gameplay elements into each Minecraft interface. Currently, the modification affects combining blocks (anvil and smithing table), shulker boxes, and grindstone, with plans to expand functionality in the future.
Shulker Boxes

It turns out that the shulkers used to create your box are still alive! You'll need to deflect the projectiles they launch before the item slots start floating away and disappear. Such and other interface changes ensure a completely unique gaming experience.