1. A control device for controlling power delivered to an electrical load, the control device comprising:a faceplate having an opening;
a button received in the opening of the faceplate, wherein a gap is formed between the button and the opening of the faceplate, the button comprising:
a cap portion; and
a diffuser portion, wherein the diffuser portion extends laterally beyond the cap portion within the opening;
at least one light source located inside of the control device and configured to provide light to the diffuser portion of the button to illuminate the gap between the button and the opening of the faceplate; and
a control circuit configured to cause the power delivered to the electrical load to be adjusted in response to an actuation of the button.