How to change the series color in the OLAP Chart?

public MainWindow()
        {
            InitializeComponent();
            this.olapchart1.OlapDataManager = new       
            Syncfusion.Olap.Manager.OlapDataManager("Data 
            Source=http://bi.syncfusion.com/olap/msmdpump.dll;
            Initial Catalog=Adventure Works DW 2008 SE;");
            this.olapchart1.OlapDataManager.SetCurrentReport(SampleReport());
            this.olapchart1.Loaded += olapchart1_Loaded; 
        }
void olapchart1_Loaded(object sender, RoutedEventArgs e)
        {
            SolidColorBrush solidColorBrush = new SolidColorBrush();
            solidColorBrush.Color = Color.FromArgb(255, 0, 0, 255);
            foreach (var series in this.olapchart1.Series)
            {
                foreach (var segment in series.Segments)
                {
                    segment.Interior = solidColorBrush;
                }
            }
        }

Public Sub New()
                InitializeComponent()
            Me.olapchart1.OlapDataManager = New  
            Syncfusion.Olap.Manager.OlapDataManager("Data 
            Source=http://bi.syncfusion.com/olap/msmdpump.dll; Initial Catalog=Adventure  
            Works DW 2008 SE;")
                Me.olapchart1.OlapDataManager.SetCurrentReport(SampleReport())
                AddHandler Me.olapchart1.Loaded, AddressOf olapchart1_Loaded
End Sub
Private Sub olapchart1_Loaded(ByVal sender As Object, ByVal e As RoutedEventArgs)
                Dim solidColorBrush As New SolidColorBrush()
                solidColorBrush.Color = Color.FromArgb(255, 0, 0, 255)
                For Each series In Me.olapchart1.Series
                                For Each segment In series.Segments
                                                segment.Interior = solidColorBrush
                                Next segment
                Next series
End Sub