LIFX Switch state

The LIFX switch offers a dumb light relay toggle, which keeps the switch button light ON (brighter) while the relay is ON.

For smart lights, groups, or scenes, is it possible to keep such state on the switch as well for smart lights?

In other words, I would like a non-relay button configuration on the LIFX switch to reflect the state of the app for a particular group, location, or device that I have it set to control.

Is this possible through the app or some API?

Nope. The only API released for the Switch so far allows you to turn a relay on or off. That’s it. You can’t even find out how many relays (or buttons) a switch has.