Click Home > Map > Add Theme.
There are four categories of themes:
In addition to the Theme types listed above SIS Desktop 9 can also create a Feature Code Theme. This styles items using feature codes from a Feature Table. The Feature Code Theme is useful when a legend is required on a map showing feature codes. The legend can be added when using the Print Wizard.
SIS Desktop 9 can also create Saved Themes which are saved copies of existing Themes that can be applied to any overlay. The option Save (Theme) is located on the Themes local menu of the Maps Control Bar: