win8 style

 <DataTemplate x:Key="Standard250x250ItemTemplate">
        <Grid HorizontalAlignment="Center" Width="250" Height="250">
            <Border Background="{StaticResource ListViewItemPlaceholderBackgroundThemeBrush}">
                <Image Source="{Binding Image}" Stretch="UniformToFill"/>
            </Border>
            <StackPanel VerticalAlignment="Bottom" Background="{StaticResource ListViewItemOverlayBackgroundThemeBrush}" Height="60" >
                <TextBlock Text="{Binding Title}" HorizontalAlignment="Center" Foreground="{StaticResource ListViewItemOverlayForegroundThemeBrush}" Style="{StaticResource TitleTextStyle_1}" Margin="15,20,15,10"/>
                <!--<TextBlock Text="{Binding Subtitle}" Foreground="{StaticResource ListViewItemOverlaySecondaryForegroundThemeBrush}" Style="{StaticResource CaptionTextStyle}" TextWrapping="NoWrap" Margin="15,0,15,10"/>-->
            </StackPanel>
        </Grid>
    </DataTemplate>





<Style x:Key="TitleTextStyle_1" TargetType="TextBlock" BasedOn="{StaticResource BaselineTextStyle}">
        <Setter Property="FontWeight" Value="SemiBold"/>
        <Setter Property="FontFamily" Value="楷体"/>
        <Setter Property="FontSize" Value="35"/>
    </Style>



       ItemTemplate="{StaticResource Standard250x250ItemTemplate}"