In the Dynamic Paint module, we can access Blender's Dynamic Paint tools to add more detail to our simulation, being able to add humidity effects, etc...
It is separated in 2 submodules, Brushes and Canvas. In Brushes we will have available all our fluid meshes, and in Canvas, all the geometries that we have in Colliders.
We leave a link on the operation of Dynamic Paint from the official Blender user's guide: