Which editor can auto-correct gradient colors?

Question

Design

There is such a picture (attached to the post), used in the design for borders between elements.
It is necessary to replace the color with another one (say, green), but with the preservation of all shades.
Is this possible somehow automatically?
Those. where it is now light purple, it will be light green, a little darker purple - a little darker green, and so on.
Sorry that it's tiny, what it is.

Answer 1

In any in which the choice of the blending mode of the layers is possible.
Automatic - via ImageMagick
https://www.imagemagick.org/Usage/compose/