As the name suggests, nametag customization is a relatively simple addon to the current Nametags mod, which would let players change the background opacity, background color, and text color of different types of name tags.
Currently the Nametags mod is a little confusing, as it doesn’t have the features the normal user would expect, so this could make it at least a little bit better.
Players should be able to change the color and opacity of the background of nametags, which would be helpful in PvP gamemodes as you can see the opponent more clearly. To compliment the background opacity and color changes, they should also be able to change the color of nametag text. This should be customizable for both players and entities as it could be used to make the game look cleaner overall or even save a few frames if needed.
I really wish this would be implemented as it would make the Nametags mod much cooler :)