Requested feature
Detail Armor Bar support.

Solution
DAB API

Example texture

This is a simple and quick mockup, picked off of existing armor texture color palette. I can make more detailed ones when you want to implement, unless you want to make them yourself.

I would love to implement support for this in a future update, but DAB doesn't seem to work properly with armor sets that have more than 20 armor points (all pieces combined).

I'm gonna look into DAB support once I'll have more time for it.

That is weird as that's the main selling point of DAB.

I already asked for a simpler way than an API to implement such feature, but I'm awaiting reply.
Also thank you for looking into it. I really appreciate it.

Currently have support for DAB implemented in my development environment, if everything goes according to plan support will be included in version 1.11.0 (MC 1.16.5 and 1.18.2)

Support for Detail Armor Bar has been implemented in version 1.11.0 (and 1.5.0 for Fabric).
Thanks for the suggestion, enjoy!