DerringersMods

It's picking up the biome water tint and applying it. In a swamp, you'll get swamp water tinted liquid starlight.

Create does [this](https://github.com/Creators-of-Create/Create/blob/858fbd5c1a12f620fa83f69abff038d771681b8a/src/main/java/com/simibubi/create/AllFluids.java#L99) to work around it.