The color menu works in a similar way to the show
and hide menus. Once the user has
chosen a structure from the Selection menu, they can then apply a color to it
through the Color menu. While a few
commonly used colors are listed, the user can customize a color by selecting the
‘Other’ option. The CPK option refers to the color scheme developed by Corey, Pauling and
Koltun that colors atoms by element type.