If you want to change the color of just one layer in Photoshop, there are a few different ways to go about it. You can use the Color Range tool to select the layer you want to change colors on, and then use the Color Picker tool to select a new color. You can also use the Hue/Saturation adjustment layer to change colors in specific areas of the layer, or use the Layer Style option in the Layers palette to add some basic effects like shadows or highlights. ..