DevExpress ChartControl Pie 颜色设置

<UserControl x:Class="UseCustomPalette.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:dxc="http://schemas.devexpress.com/winfx/2008/xaml/charts"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400" >

    <Grid x:Name="LayoutRoot" Background="White">
        <dxc:ChartControl Name="chartControl1" >


            <!--region #Palette 主要是这里-->
            <dxc:ChartControl.Palette>
                <dxc:CustomPalette>
                    <dxc:CustomPalette.Colors>
                        <Color>Blue</Color>
                        <Color>Yellow</Color>
                        <Color>Magenta</Color>
                    </dxc:CustomPalette.Colors>
                </dxc:CustomPalette>
            </dxc:ChartControl.Palette>
            <!--endregion #Palette-->


            <dxc:ChartControl.Diagram>
                <dxc:SimpleDiagram2D>
                    <dxc:SimpleDiagram2D.Series>
                        <dxc:PieSeries2D HoleRadiusPercent="0" >
                            <dxc:PieSeries2D.Points>
                                <dxc:SeriesPoint Argument="A" Value="3" />
                                <dxc:SeriesPoint Argument="B" Value="2" />
                                <dxc:SeriesPoint Argument="C" Value="1" />
                            </dxc:PieSeries2D.Points>
                        </dxc:PieSeries2D>
                    </dxc:SimpleDiagram2D.Series>
                </dxc:SimpleDiagram2D>
            </dxc:ChartControl.Diagram>
        </dxc:ChartControl>
    </Grid>
</UserControl>