AppTitleStyle

        <Style x:Key="AppTitleStyle" TargetType="TextBlock">
            <Setter Property="Margin" Value="12,0"/>
            <Setter Property="FontFamily" Value="{StaticResource PhoneFontFamilySemiBold}"/>
            <Setter Property="FontSize" Value="{StaticResource PivotTitleFontSize}"/>
        </Style>