I previously had an issue with the mod crashing on startup, but once I got cloth config I was able to launch the mod successfully. However once I loaded in using a resource pack with custom color and light mapping that I ordinarily use with optifine, I was presented with this:

Is there perhaps something I can do on my end to correct this?

I'm using:
Cloth Config v4.11.26 for 1.16
colormatic-2.2.9+mc.1.16.5.jar
Latest versions of Sodium, Lithium, and Phosphor for 1.16.5

What is your options.txt? It could be a messed up gamma setting

Closing due to inactivity.

Confirmed that this bug occurs when gamma is not in the range [0.0,1.0]. This is an issue, because I like to play with a gamma of 2.0.

I don't think closing due to inactivity is good, since issues are still issues, whether or not the issue page gets much attention.