Maybe do something like canva or ibixpaint does where you can blend two colors together into a gradient and/or mix two colors and see their outcome. I want to be able to do gradients.

when people do 2 color dresses they want the colors to blend so i think we need a blender tool in Magma

It's blends the images together.

A blur tool so you can blend colours together quickly. It would save a lot of time getting the transition between colours right!

blend brush feature