Minecraft Version: 1.12.2.
Flan's Version: 5.5.2
An issue is present with the mod where items/blocks rendered in first person do not follow lighting correctly and are fully bright. (for example, it's shaded at certain angles).

Screenshots:

Vanilla

With Flan's Mod installed

I think problems is in src/main/java/com/flansmod/client/ClientEventHandler.java

line 118
@SubscribeEvent public void renderHeldItem(RenderHandEvent event) { renderHooks.renderHeldItem(event); }