WPF ユーザーコントロール

<UserControl x:Class="WpfApplication6.Cell"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        >
    <Grid >
    <Polygon Name="Polygon" Margin="5 5 5 5"
    Points="25,0 75, 0 100,43 75,86 25, 86 0 43"
    Stroke="Purple"
    StrokeThickness="2">
            <Polygon.Fill>
                <SolidColorBrush Color="Red" Opacity="0.8"/>
            </Polygon.Fill>
        </Polygon>

        <Label Name="label1" HorizontalContentAlignment="Center" Margin="6,15,6,0">Label</Label>
        <Label Name="label2" HorizontalContentAlignment="Center" Margin="4,47,8,21" >Label</Label>
    </Grid>

</UserControl>

用途は・・・