Adding an adjustment layer
You can add adjustment layers to an image to apply color and tonal adjustments without permanently changing the pixel values in the image. For example, if you add a Color Balance adjustment layer to an image, you can experiment with different colors repeatedly, because the change occurs only on the adjustment layer. If you decide to return to the original pixel values, you can hide or delete the adjustment layer.
You’ve used adjustment layers in other lessons. Here, you’ll add a Hue/Saturation adjustment layer to change the color of the purple flower. An adjustment layer affects all layers below it in the image’s stacking order unless a selection is active when you create it or you create a clipping mask.
Select the Flower2 layer in the Layers panel.
Click the Hue/Saturation icon in the Adjustments panel to add a Hue/Saturation adjustment layer.
In the Properties panel, apply the following settings:
The changes affect the Flower2, Pineapple Copy, Pineapple, Clouds, and Background layers. The effect is interesting, but you want to change only the Flower2 layer.
In the Properties panel, click the Create Clipping Mask button (). It’s the first button along the bottom of the panel, and you see it when the Properties panel displays options for a layer that can become a clipping mask, such as an adjustment layer.
An arrow appears in the Layers panel, indicating that the adjustment layer applies only to the Flower2 layer. You’ll learn more about clipping masks in Lessons 6 and 7.