Quark Backpack Plus

Fixed the backpack model rendering anomaly of equipped items in the curios slot.

Respect Quark mod "Allow Opening Shulker Boxes" config for shulkers in backpack;
Fixed data sync issue in ShulkerBoxContainer to prevent item loss on menu close;
Fixed the issue where backpack items equipped in the curios slot are returned to the player's inventory the first time the game enters the world.

🎒 Quark Backpack Plus

A lightweight Minecraft 1.21.1 NeoForge mod that adds two practical features to Quark's backpack:

• Equip to Curios "Back" slot – No longer occupies the chestplate slot.
• Open shulker boxes directly from backpack – More convenient without moving items to inventory.