Issue Description:

Note: I'm playing on a Modpack but this is happening on a Clean "Vanilla" Instance w/ only the mod installed too.

Steps to reproduce:

1. Look at a Living Entity's Health in the Hwyla Overlay.
2. Hurt the mob with a sword, bring down it's health.
3. Missing hearts turn pink.
4. Done.

Edit: Also noticed the existing hearts have a black background. No transparency.

Image: (Look in the top left)

https://i.imgur.com/QnUuQbz.png

Affected Versions:

• Hwyla: 1.10.7-B71_1.15.1
• Minecraft: 1.15.1
• Forge: 30.0.41

Render system changed a lot in 1.15.1. I just renamed function names to make it work on forge 1.15.1. I can't fix it.

Ah.. gotcha!