The bug

Unlike other special slots with their own unique appearences (e.g. loom slots), the "Destroy Item" slot in the "Survival Inventory" tab accessible in Creative mode does not have a unique, dedicated texture file for this slot, and it is instead a part of textures/gui/container/creative_inventory/tab_inventory.png, making it inconsistent with almost all other special slots.

How to reproduce

1. Open the contents of the jar file
2. Navigate to textures/gui/container/creative_inventory/tab_inventory.png
3. Inspect this image file

Expected results

The destroy item slot would look like a normal slot, with the red background and X being handled with a separate file.

Actual results

The red background and X are built into this inventory texture instead, making it inconsistent with other special inventory slots.

How to fix

An extracted destroy_item slot texture has been extracted from tab_inventory.png. It can be placed somewhere (likely textures/gui/sprites/container/creative_inventory) and the game would place this texture file over the existing slot like it does with empty armor slots, empty smithing table slots and the like.