Gradient Map Filter
Intro
Generate a gradient based on the brightness of an input.
The Shape's tonal range (from dark to light) is mapped to the gradient's colors (from left to right).
UI
Reverse - Reverse the direction of the Gradient.
Premultiply - When checked, the calculation for transparent pixels is premultiplied.
Gradient Mode - Select an interpolation for the Gradient. See Gradient.
Gradient - Set the color stops for the gradient.