ViewManagerBackgroundMode Property

public BackgroundModes BackgroundMode { get; set; }

// VIZCore3D.NET Control
private VIZCore3D.NET.VIZCore3DControl vizcore3d;

private void Example()
{
    vizcore3d.View.BackgroundColor1 = System.Drawing.Color.Gray;
    vizcore3d.View.BackgroundColor2 = System.Drawing.Color.White;
    vizcore3d.View.BackgroundMode = Data.BackgroundModes.COLOR_TWO_CENTER;
}