This palette consists primarily of a series of rectangles, each filled with a true color. Each color is accurately defined in terms of a mix of Red, Green and Blue.
Several plant symbols are shown. It is possible to select and explode a symbol. Then, by using the match properties tool apply any of the colors in the rectangles to any part of the symbol and generate a new symbol.
Click on the symbol below to download a copy of this palette.
Here is a link that explains how to use a palette such as this one.