Ive been diving in the baltic sea and during the summer times we have a visibility of 50 cm due the greensoup.
But if i dive under the thermal layer its clear but the sun cant reach that far down so its more grey/steelblue colours.
But that greenish colour appears mostly at the coastline. You never se that out in the open sea. (ive been a fisherman also)
In the open sea its more steelblue to greenish colour here in the north.
But if u look at the medteerain water its more azure blue in its colour. Just like you modded it.
When my career takes me to midteerain and i have that greensoup i will defenlty use your mod to better reflect that part of the world.