Cycling through the Available Spectrums

You can define the foreground or background color not only by using the sliders but also by sampling from the spectrum displayed in the color ramp at the bottom of the palette (Figure 3-8). You can change the model that the spectrum is based on from the palette menu or by pressing the Shift key while clicking anywhere in the spectrum. Although the latter method is quicker, you may need to keep an eye on the Info palette to see which model is being presented as the spectrum displays one color model while the color ramps below the sliders display in another color model. To define the background color, press Alt (Windows), Opt (Mac OS) as you click in the ramp.

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