The bug

In general, Programmer Art does not duplicate texture files which would be identical to that of vanilla (as explained in MC-266281). However, there exist counterexamples with respect to GUI textures.

Relates to MC-266281 and MC-268926.

Affected texture files

The following files are bit-perfectly identical:

• sprites/widget/slider.png
• sprites/widget/slider_highlighted.png

The second has a slightly different mcmeta for nine-slicing, however I believe this to be included in error as there is effectively no visual difference, and 23w31a changed how button textures fundamentally work anyway to the point where this difference isn't preserving any prior different appearance.

The following files are different only in 100% transparent pixels:

• sprites/container/inventory/effect_background_large.png
• sprites/container/enchanting_table/level_2_disabled.png
• sprites/container/enchanting_table/level_3_disabled.png
• sprites/hud/hotbar_offhand_right.png
• sprites/statistics/item_dropped.png
• sprites/statistics/item_picked_up.png

How to fix

Delete these texture files from the Programmer Art resource pack.