Shulker Preview
This is a data and resource pack that lets you view the contents of shulker boxes and ender chests inside your inventory. It uses custom fonts to add item and tooltip textures, and displays them in the item's lore.
It's just like Shulker Box Tooltip or similar mods, but as a vanilla data pack.
Both the data pack and resource pack must be used for the preview to work properly. If the server or world is missing the data pack, the resource pack will have no effects. If any player is missing the resource pack, that player will see the normal vanilla tooltip.
All Versions
+ Add Version+ Settings menu now uses custom dialog instead of chat
+ All 1.21.5 items
+ Decorated pots show their patterns
+ All colorable items show exact colors
+ Bundles show their fill percentage
+ Option for colored tooltips
+ Ender chest previews are now enabled by default
+ Use storage instead of entities to construct tooltip
+ Use macros instead of function trees to generate translations
+ Tooltip and number textures come from your resource pack
+ Use "fallback" feature instead of old translation-detection trick
+ Unknown items show a missing texture instead of messing up the order
+ No longer requires forceloaded chunk
+ Now uses custom font, preventing potential private use conflicts
+ Item textures use the player's current resource pack
+ Banners and shields show their pattern
+ Custom colored armor, potions, etc. show approximate colors
+ When ender chest previews are enabled, ender chests showing the same preview can stack
+ New settings menu for toggling previews for shulker boxes and ender chests
+ When Bukkit server is detected, switches to slower but fewer-character lore generation method
+ Detects when Bukkit mangles lore, and adds text to the tooltip notifying you
+ All 1.14 items
+ Option to preview ender chests
+ Optifine compatibility
+ No longer crashes on certain graphics cards
+ Show custom item name in tooltip
+ More accurate durability bars
+ Data pack no longer requires clicking forceload text
+ Default Minecraft tooltip appears for players without the pack