Fine-tune the colors in your image, or even completely change them, by modifying the hue, saturation and luminosity (lightness).
Settings
The following settings can be adjusted in the dialog:
Channel—alter all colors at once (Master) or choose an individual color set (eg Yellows).
HSV—when checked, uses the Hue Saturation Value (HSV) model instead of Hue Saturation Lightness (HSL). The Saturation and Luminosity sliders behave differently between the two models.
Hue Shift—controls the color tint of pixels in the image. Drag the lower slider to shift the colors through the spectrum. (See note below.)
Saturation Shift—controls the intensity of the colors in the image. Drag the slider to the left to decrease color intensity, drag to the right to increase it.
Luminosity Shift—controls the overall brightness of the image. Drag the slider to the left to decrease brightness, drag to the right to increase it.