I was thinking . Steinberg don¨t produce all their own plugins, do they?
Looking at the Fx Modulator I most certainly have owned “that” plugin for years except for with a different GUI.
When I look at the Supervison plugin it makes me think of Zplane. I even saw the company MAAT have their name on a plugin in a promo video.
Is it known who contributes to the Steinberg plugins or is that just hired muscle and “not public” information?