Overview of defining simple symbology in ArcPad
Simple symbology is specified and changed in ArcPad using the Point, Line, or Polygon Style page of the Symbology Properties dialog box. The Symbol Properties dialog box is accessed via the Legend, or the Symbology tab in the Layer Properties dialog box, or the Symbology page in the Feature Properties dialog box.
The Symbology can be defined for point, line, and polygon layers. Once the symbology is set for a layer or for a subset of features within a layer, all the features in that category will have the same symbol.