Start (1) 

"Start" defines the starting hue of the color function, where 1 = red, 2 = green and 3 = blue:

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Rotations (1) 

"Rotations" defines how many times we cycle through all hues. 0 means that we only use one hue, 1 means that we cycle through all hues once and -2 means that we cycle through all hues twice but in a reverse direction:

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Hue (1) 

"Hue" (which is really chroma) defines how colorful the function is. 0 means that there is no color and 1 means that there is a default amount of color. You can use values greater than 2.6, but they will tend to be oversaturated:

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Gamma (1) 

"Gamma" shifts the lightness curve and should be a value greater than 0 but less than 2. The default value (1) provides a linear curve. Lower values (like 1/4) will lighten all colors but will leave low values dark. Higher values (like 3/4) will darken all colors but will leave high values light:

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Rainbow (2) 

You can use these options to create a rainbow gradient:

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This is the same as if we used LCHColor directly:

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Custom Color Functions (1) 

Here are a couple of presets you might like:

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Animated Pastels (1) 

This creates an animated gradient:

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Cubehelix Explorer (1) 

You can use this manipulate to play around with the options:

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