Modulation and an all-black rig.
Okay...
Worng Electronics Vector Space - combining modulation sources for interesting results
Xaoc Batumi and Poti in their alternate black face-plates - quad digital LFO with expander.
Xaoc Zadar in black face-plate. Quad digital envelope generator. An expander is also available for this (don't know name).
You can get smaller versions of most of the Mutable Instruments stuff if you're okay with smaller knobs.