Manual

Image Adjustments

Image->Adjustments
HSB - Hue, Saturation, Brightness
These sliders work on offset principle. In essence any color can be turned into any other by shifting its hue, saturation, and brightness similar to an hsb color picker.

Colorize Grayscale is an option which allows to colorize pixels of no saturation (grayscale).
Tick the option and then give it some saturation along with adjusting any other sliders to your liking.

Effect Area sliders help to isolate area of effect by seeking only pixels that correspond to set limits

note: large images may take a long time to process, please allow time.