WPFスタイル

グラデーション

<Window x:Class="Sandbox.Window1"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:r="clr-namespace:RatingControlSample;assembly=RatingControlSample"
        Title="Window1"
        Width="319"
        Height="299">
    <Window.Background>
        <LinearGradientBrush StartPoint="0,0" EndPoint="0,1">
            <GradientStop Color="#FF505050" Offset="0"/>
            <GradientStop Color="#FF202020" Offset="1"/>
        </LinearGradientBrush>
    </Window.Background>
    <Grid>
    </Grid>
</Window>