The organic approach. Those colors also really inspire. I’m a sucker for a GUI like this. And the dev is quite dedicated. There’s a thread over at VI Control that pushed me off the fence.
Those are among the very best. Frankly, on my musical island, I could live with only FabFilter, Slate and Zynaptiq for mixing and fx. Plus a few special ones, like EastWest Spaces, Soundtoys Little Plate, Soundtheory Gullfoss and Wavesfactory Trackspacer.