Oh dear. I was just doing my own modification to the sRGB stuff, to use Color_Step instead of Blender.

I told you that in matmatic, a <= b uses Step or Color_Step as needed - not true. This is a bug.

So make sure you explicitly ask for Color_Step(a, b). Sheesh - good thing I kept the "beta" going for 3+ years. Finally found a bug.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)