You could lerp it to 0% increase, but disabling it saves a few instructions.
The reason that the yellow screen-traces don’t cause an issue is because when it is not adjust is that it will be yellow in both the screen-trace and the reflection.
Bluing adjusts the ray-traces only, not the screen-traces. This causes it to become white in the screen-trace but blue in the ray-trace. It’s not horrible, but it is noticeable.
As to to the P.S., this is exactly why every large project should probably use master materials. You will often find in a production environment you want to deploy a change across a wide number of materials, which is trivial when set up this way. Alternatively, only add it to the few materials that actually need it. I don’t think this is going to be a common issue.
As to the P.P.S.: True. I will add that if I’m looking for the difference, I can spot it down to about 0.3. When I’m not looking for it, Lumen starts to appear visibly warm to me around 0.7.
I guess maybe Archvis might get some use out of it - they love their bright modern walls, but they’re also the most likely to run into the issue of reflections being too blue.
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