Using the latest MakeUp-UltraFast-8.5a, if "vanilla like water" is set to "on", setting the "water color" to "shader scheme" doesn't do anything. Other shaders packs with similar options manage to still apply a color transformation even if "vanilla-like" water options are chosen.

I tested this by manually editing the source files to make water neon green. It only applies if "vanilla like water" is set to "off".

I am sorry. It is not a fault. That's how it was originally designed a long time ago. But what you say makes sense.

Vanilla mode was literally vanilla mode.

No worries. If you're willing to consider this an enhancement request, for something you might return to if you're interested and have the time, I'd be happy enough. Thanks!