Now that you have established what color schemes you are going to use, you can start making your own gradients to go with the color schemes.
1. Go to the window menu and open the following palettes:Swatches, Gradients, & Colors
2. Make sure that your swatches palette is showing gradient swatches (Click 3rd from icon at bottom of palette)
3. Fill one of your shapes with a rainbow gradient
4. Edit the rainbow gradient in the Gradient palette:
* click and drag sliders away to delete colors
* click and drag slider left and right to change sliders
* click on slider bar to create new sliders
* click on slider to select it and then edit the slider color in the color palette
* choose radial or linear for type of gradient