Step 21: Add Another Hue/Saturation Adjustment Layer Above All The Others

So far, we've been using Hue/Saturation adjustment layers to colorize each section of the photo. Now that we've completed the initial effect, we can use yet another Hue/Saturation adjustment layer to quickly change all four colors at once! Of course, if you're happy with the colors you've chosen, you may not want to change anything, but if you do want to change them, here's a quick way to do it. First, select the adjustment layer at the top of the Layers palette ("Hue/Saturation 4"). Then click on the New Adjustment Layer icon at the bottom of the Layers palette and once again choose Hue/Saturation from the list. This will add a new Hue/Saturation adjustment layer above all the others. Notice how this time, the layer mask preview thumbnail for the adjustment layer is filled completely with white. That's because we did not have a selection active when we added it. With the entire layer mask filled with white, whatever we do with this adjustment layer is going to affect the entire photo:

Step 22: Drag The Hue Slider To Change All Four Colors At Once

This time, we do not want to colorize the image. Colorizing it would replace all the colors we've just added with a single color, so leave the Colorize option in the Hue/Saturation dialog box unchecked. Instead, simply drag the Hue slider either left or right. As you drag it, you'll see all four colors in your image changing to different colors! For example, here I've dragged my Hue slider to the left to a value of -123:

The colors in my effect have now shifted from reds and yellows to blues and purples:

This time, I'll drag the Hue slider over to the right to a value of +170:

The colors in my image have now shifted to greens and blues:

What if you're happy with the colors you've chosen but you want to brighten them up a bit? Here's my image once again with the original colors I chose:

You can use the Hue/Saturation adjustment layer we added to quickly brighten all four colors in the effect simply by dragging the Saturation slider. Drag the slider to the left to decrease color saturation, reducing the intensity of the colors, or drag it to the right to increase saturation. Since I want to make my colors brighter, I'm going to drag the Saturation slider to the right to a value of around +40:

The colors in my effect now appear brighter and more intense:

And there we have it!

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