In the image below, the Glossy setting is not ideal as we can see a clear reflection of the adjacent pool and concrete wall. The stone is not reflective however, it did darken up the mortar joints.

Pull the trowel up the wall to embed the mortar in the lath. You’ll find recipes for mixing your own mortar in the stone manufacturer’s instructions, but Schilling uses premixed Type S mortar ...

This color will become the “mortar” of your accent wall ... Another key to getting longevity out of a faux stone wall is proper maintenance, says Joseph Passalacqua, owner of Maid Sailors ...