Lovelace card for dual white led

I’m trying to think of a way to add controls for a dual white led connected to a shelly RGBW2 device. By default the rgbw2 supports an RGBW ledstrip or 4 single white led strips.

I’ve seen others work on this, but I think this only provides an interface to the RGBW2 device, not a card to interface with it.

I was thinking something along the lines of this picture as a card to control it.

Is it easy to create something like this?