Option to invert color scale in composites

[Agustin Lobo]

For geology, it would be very handy a button in the RGB compositing menus to invert the scale in the following way:

max_stretched_value - stretched_value

This is a quick and dirty proxy to continuum removal composites, and very useful for fast inspection, because mineral abundances are proportional to absorption, thus the composites are easier to visually interpret (just more intuitive).

[Andreas Rabe]

Hi Agus, please check if this option here is doing the trick for you:

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