One major issue with this pack is the learning curve. For example, if someone has 3 bars, they may not be able to differentiate 2 from 3. I think a good solution to this would be to, configurably, have health displayed numerically as well as visually. That way you could have it yellow while showing your HP as smth like "XX/60" or whatever, you get the point

This is a nice idea, but I'm having a hard time finding a good location to display this health number. There must be a mod that displays your health as a number somewhere on screen already.
I'll put this on my list, but if you find a mod that has the feature, I would prefer if you used that instead as my main focus with this mod is just to colorize and unify hearts.

nice

I too am having a hard time with this issue. It would work well with me if at the left side of the hearts It would show what row of hearts you are on. Like if you were on the first row it would show 1x and if you were on the second row 2x etc. A simple addition like this would solve the problem for most users. This is a great mod and it's so useful. Thank you lots for making it.

there was one mod like this that just showed the current /max health in a larger heart next to the health bar.

I implemented something like this for both absorption and health, the text color and content can also be changed within the config files.

Just have to port it over from 1.17 to 1.18 and I'm gonna have a release ready. Then its time to start work on 1.19.