
Mastering Adobe Photoshop Elements 2021
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Elements has several color adjusting tools—the most commonly used one perhaps being Hue/Saturation (Ctrl/Cmd + U).
Hue describes the color values of the pixels – with this slider, you can reassign different color values to what's in the file, such as changing red to yellow. Used on its own, it operates globally, so not only do the red tones change to yellow, but all the other colors shift as well, often producing wildly surreal and not very useful color results.
The Saturation part of this feature controls the intensity of the color value in the pixels. So, if you set the slider to a minus amount, it begins to lose color, or desaturate, eventually turning black and white, while shifting it to the right increases the color values, making the image appear richer in color. This is a global change, so everything in the file gets more or less colorful.
The third part of this tool, Lightness, isn't very useful...