A Pattern object associated with the event's body.
By default, the BodyPattern.Type
property exPatternEmpty which
indicates that no pattern is shown, on the event's body. The Color property
indicates the color to display the pattern. The FrameColor
property indicates the color to show the frame, if the exPatternFrame flag is
included in the Type property. The EventPattern
property indicates the pattern to be shown when events belongs to different
groups. The StatusPattern property
specifies the pattern to be shown on the event's status.