Gradient map style editor from photoshop or substance designer

The current gradientfilter is hard to manage and visually unintuitive while both photoshop and substance designer have proper implementations where you can add color on a gradient and visually move them around.

Just the base functionality of the gradientbar with its colors would be great , all the additional features like the presets and fading between points would be even better,

current one from the Gradient filter

suggested one from photoshops GradientMap

Substance Designer implementation