Mod Version: 1.16.4-4.0.3.8

Forge Version: 35.1.37

Description:

Disabling Biome Fog has no effect. The nether wastes biome still has a yellow brimstone fog. Removing dsurround returns the red fog.

Logs and config: https://gist.github.com/Vazkii/eaabed0dff1c3da5f4c506cdedd87f0c

Further testing - the minimal configuration that causes this to happen requires Environmental, an unreleased mod to be in the pack. I'll poke this over at their side.

This is interesting. DS does not, by default, have any fog coloration for nether biomes. I loaded up a simple 1.16.5 world without DS and see the red fog for nether wastes. I add DS, and the red fog is still there. Not sure why the sky is being tinted atm. Do you have a mod list so I can load up and see if there is an interaction?

(There is a bug with coloration where if biome fog is disabled it still reports the fog color to MC if DS has a definition. Need to fix that.)

Unfortunately, the modpack I'm using currently has some unreleased mods. If you want access to it, feel free to give me a poke on discord at https://discord.gg/vazkii

I'm doing some more tests to see if I can find the culprit myself. Here's what I'm seeing, with a default ds config:

Ah, OK. Based on that PR I know what happened. Because it was tagged wasteland it got the yellow fog tint from DS. Though DS fog effects are disabled for the Nether, the bug I mentioned in the above would still cause the color to be reported to MC whenever the biome fog was queried. With the fix I am making this should not happen.