There are various types of objects which are being drawn in the listbox and corresponding color in RGB format. The color with which the selected object will be drawn is shown below listbox. Double-click on the color or name of an object to open the Color dialog, which is used to customize the color. Double-click on a red, green, or blue value of a color to edit the individual hue value. It can be in a range of 0(darkest)-255(lightest).