The Swatches panel contains a collection of frequently used colors. Select a color from the set by clicking the left mouse button, and it will be set as the main color. Press to access the control menu, which duplicates the functions of the buttons below.
The squares at the bottom of the panel keep the last used colors. Left-click the cell to replace the main color with the specified one.
The commands from the context menu and the buttons at the bottom of the panel have the following uses: