How to make material painted with Layer Weighmap less transparent

Hi!

I’m trying to paint bottom of the river with Layer Weighmap but my material is very transparent and hardly visible. Build in settings don’t help that much. How can I increase visibility of my material?

Master Material:

Check the value you are painting? (As in actual brush settings)

I’m not painting it. Material is automatically painted where the river component is (second picture). I don’t know how to control the strenght of it.