The Temperature color adjustment layer adds or subtracts warm colors from your photograph. Add a temperature layer by clicking the Temperature icon on the Color tab of the toolbar, then adjust the selected temperature layer in the Temperature Properties panel.
Use the Temperature color adjustment layer to make a cold photograph warmer, or a warm photograph cooler. The type of lighting available when a photograph is taken can affect the temperature of the photograph, also known as the color balance or white balance. For example, a subject photographed indoors may appear more orange than the same object photographed outdoors. If the temperature of a photograph is too cold then whites appear blue, and if it's too warm then whites appear orange or red.
Use the slider to add warmth or coolness to your image.