This little network enhances the difference between the original image and a reference color.

It can be used for very subtle color shifting.

Here, I use purple and a factor of 1.5. This de-purples.

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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)