Smart Wall Switches for Harmony Elite/Alexa

Caseta devices come in several different colors, Including black, ivory and almond. Some Home Depot’s can special order the other colors for you, Amazon sometimes has them, otherwise Westside Wholesale usually has them.

https://www.amazon.com/Lutron-PD-6WCL-BL-Caseta-Wireless-150-Watt/dp/B00KLAXNC6

Since the pico is a battery operated device, you can put it anywhere on the wall that you want. Some people will put a blanking plate over the existing auxiliary light box, others just put the Pico someplace else.

The official SmartThings/Lutron integration is cloud to cloud, so you will need the SmartBridge or SmartBridge pro to make it work.