Is your feature request related to a problem? Please describe

In vanilla Minecraft, water does not use smooth lighting even if it is enabled.

Describe the solution you'd like

I think it would be a cool feature of Alfheim to fix this.

This is what water currently looks like in vanilla MC and even with Alfheim installed:

Indeed would be cool

i believe Fluidlogged API fix this issue

you can try Vintageium?

As far as I know, this isn't a lighting engine issue iirc, but a rendering issue.
Plus it seems other mods (Fluidlogged API and maybe Vintagium fixes the issue)