All panels may be docked in several places on the screen or they may float. Floating panels may be dragged anywhere on the screen and will appear on top of other items. To move a panel, left-click and drag it by its Title Tab (the name of the panel). As you drag it around the screen, watch for a blue line which indicates where it will be docked if dropped (release left-click to drop). When panels are docked to the screen, they may stay open at all times. The graphic below shows the Color panel when open at all times. Also, notice that the Swatches panel hidden. The name is just to the right of the Color panel. It may be opened by clicking on the name of the panel, "Swatches."
When collapsed, the panels become small icons (See below). The icon for the Color panel is the first icon on these screen shots.
Single-click on the small icon to temporarily open a panel;it will stay open as long as you are using it. It will automatically close when you click away.
The graphic below shows the Color panel expanded.