The slot_highlight_front texture renders incorrectly behind with missing recipe items

The slot_highlight_front.png texture renders incorrectly behind missing recipe book items (the 'ghost' items in a crafting grid with the red background) when hovering over them.

Steps to Reproduce:

1. Download and apply this resource pack:
   

1. In a recipe book, try and complete a recipe an item you cannot craft

Expected Result:

The front highlight texture would render in front of the ghost item and the red background, because it is labeled as 'front' and functions that way for regular items:

Observed Behavior:

The front highlight is rendered behind the red highlight, and missing item: