1.21.4
release
Storage Displays
Shows contents of first slot in Inventories
Storage Displays
Want to know what's in your storage at a glance?
This pack adds a block that displays the contents of the first slot of the storage container it is placed on.
Crafting recipe for the Storage Display:

If you want to remove the Display, just left klick on it and it will pop off.
Storage displays can be placed on any container that has a chest inventory (not ender chests)
You can place it on: Chests, Trapped Chests, Shulkerboxes, Barrels. They can be placed in any direction (east, west, north, south) and on top of containers.