Left Toolbar > Adjust Nodes > Gradient Map
The Gradient Map Node shades one image color to another. Blend it with the original image to add more options to adjust the output image's color.
On the left toolbar choose Adjust Node > Gradient Map Node
Drag the Gradient Map icon into the Node Graph.
Connect the output of an image node into the Img input in the Gradient Map node.
Connect a Mask image ot the Mask to apply the Gradient Map effect to an specific area.
Set the blend mode and opacity to modify the output image.
Img The image to be adjusted. Mask image.
Img The adjusted image.
The adjusted image is blended with the input image to provide additional adjustment options. Select among different blend modes.
Opacity The opacity of the original image in the blending process.