legacy: Set to false to disable the legacy integration (highly recommended), will change structure of the published payload (default true). But there are may third-party switch covers available for that purpose (holding one or two dimmer switches). Connect the Hue DIM Switch to your Philips Hue bridge, configure it via the app and control your favorite lighting environment. That means you could assign any HomeKit scene or automation to any of the Dimmer Switches buttons, as well as control any HomeKit-compatible smart device. One option is for the power button to turn on your assigned lights with the last-used lighting scene, while the other option always triggers the same assigned light scene.

It doesn't look cheap, in fact it looks really modern and I'd change all my switches to these if I could.You can pick up to five different scenes; so, for example, pressing the Hue button once might activate a “Bright” scene, a second press could trigger the “Concentrate” scene, and so on.

They mention that it allows them to control not only the brightness levels, but also 4 different light on modes, and 5 different light effects.

The nature of 3D printing means that layer lines may be visible under certain lighting conditions/angles.