@Wayne-TP I figured it out. I had incorrectly wired the neutral wire in the box. Once corrected, the light turns all the way off at the click of the switch or via the app. Thanks for the reply.

Installed new Kasa KS225 Smart Wi-Fi Dimmer Switch (SIngle Pole). I have power to the switch and the app has connected to it without issue. However, the light never turns off completely. The light...