Items in the interfaces are not in the foreground.

When an image is over an interface like on screenshot 1, they items are not in the foreground, the Count are incorrectly applied, and a white filter is present (black_stained_glass).

and when you target a "Empty" slot this slot does not highlight.

To reproduce :
1- With a ResoucePack create a CustomFont (It's the more simplest).
2- In the Interface Rename The Entity/Block with CustomFont.

You can try quickly with my ResoucePack :
https://www.dropbox.com/s/706bsi7ewnsfthn/Jira%20test.zip?dl=1

team add NameNotVisible
team modify NameNotVisible nametagVisibility never

summon donkey ~ ~ ~ {SaddleItem:{id:saddle,Count:1},Tame:1,ChestedHorse:1,Team:NameNotVisible,CustomName:'{"text":"\\uF808\\uEd99","color":"white"}'}