This .NET class wraps the ObjectARX bitfield enum AcGiVisualStyleProperties::DisplayStyle. 

It describes the combination of enabled display settings.

Public Enum VSDisplayStyles
  BackgroundsFlag = 1
  LightingFlag = 2
  MaterialsFlag = 4
  None = 0
  TexturesFlag = 8
End Enum

public enum VSDisplayStyles {
  BackgroundsFlag = 1,
  LightingFlag = 2,
  MaterialsFlag = 4,
  None = 0,
  TexturesFlag = 8
}