The Map Layers Tab provides a list of available map layers. The
user is provided with check boxes for turning layers on or off (Figure 1). The Map will automatically
update upon each check box clicked.
The Expand link at the top of the tab enables the user to expand the layer list to present the
symbology and colors used in the map for different layers and their various "classes" (Figure 2). The Collapse
link reduces the layer list to its original form. While the Expanded Layer List provides more
information, the Collapsed Layer List is much shorter, and is easier
for the user to browse and find layers.