When you modify brightness, colours appear to emit more or less light. You can modify brightness across the entire image or just in the shadows, midtones, and highlights. You can also view and make printer light adjustments. Reset the brightness settings to their original values at any time.
(a) Printer light settings (b) Brightness slider (c) Brightness controls for shadows, midtones, and highlights (d) Brightness Balance wheel and button
If you want to modify R, G, B curves individually and within a particular range, use the RGB curves. See Modifying Red, Green, and Blue Channels.
