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Setting the Plot background is an easy way to add some customization and contrast to your chart.
The following XAML markup allows you to set the background:
<c1:C1Chart.View>
<c1:ChartView PlotBackground="#FF343434">
</c1:ChartView>
</c1:C1Chart.View>
You can also set the PlotBackground property in code. Just specify your chart by name, and add the following code to the InitializeComponent() method:
chart.View.PlotBackground = Brushes.BlueViolet;