There is an unnecessary black pixel in the upper right corner of small potion UI icons in the inventory

The Bug:

There is a misplaced black pixel in the upper right corner of small potion UI icons in the inventory.

Steps to Reproduce:

1. Set your GUI scale to a large value and give yourself the regeneration effect by using the command provided below.

   /effect give @s minecraft:regeneration 999 0

2. Open your inventory and look at the upper right corner of the small potion UI icon.
3. Take note as to whether or not there is an unnecessary black pixel in the upper right corner of small potion UI icons in the inventory.

Observed Behavior:

There is an unnecessary black pixel in the upper right corner of small potion UI icons in the inventory.

Expected Behavior:

There would not be an unnecessary black pixel in the upper right corner of small potion UI icons in the inventory.