Dark Color Multi-button Wall Switch?

You were probably looking at the Leviton VCRS4. There are also a couple of battery-operated switches you can see in the buttons FAQ, but they’re all white as well.

But I don’t know of a black multi button wall switch for the US market. Aeon Labs has one planned, but it hasn’t come to market.

The other alternative is to take an inexpensive Wi-Fi phone and put a dashboard on that. If you smart tiles, you can customize the tile color and size as well as the device selection: