This resource pack provides the ability to change the appearance of the original item by renaming it, but it is not working with ETF/EMF. The resource pack creator says report it to mod.

https://www.curseforge.com/minecraft/texture-packs/newdefaultplus/files/5388649 I use this. and mod list.

emf and etf do not do this, only entity related features, you are looking for CIT resewn