This document discusses color correction techniques in image editing software. It describes how levels, curves, hue/saturation, and color balance panels can be used to adjust colors and tones. Levels allow for overall tonal and color adjustments to highlights, shadows, and midtones or individual channels. Curves allow more precise targeting of colors and areas. Hue/saturation modifies color saturation, and color balance modifies specific colors using sliders. The best method depends on the needs and skills of the designer.