wpf 有图片的按键样式

<Style x:Key="BtnBackgroundIconCustomDialogStyle" TargetType="{x:Type Button}">
    <Setter Property="FocusVisualStyle" Value="{x:Null}" />
    <Setter Property="SnapsToDevicePixels" Value="true" />
    <Setter Property="Width" Value="150" />
    <Setter Property="Height" Value="40" />
    <Setter Property="BorderThickness" Value="0" />
    <Setter Property="FontWeight" Value="Normal" />
    <Setter Property="FontSize" Value="17" />
    <Setter Property="Foreground" Value="White" />
    <Setter Property="Background" Value="#049AFF" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type Button}">
                <Border BorderThickness="{TemplateBinding BorderThickness}" Width="{TemplateBinding Width}" CornerRadius="4" Background="{TemplateBinding Background}" Effect="{TemplateBinding Effect}" HorizontalAlignment="Center">
                    <Grid HorizontalAlignment="Center">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="Auto" />
                            <ColumnDefinition Width="*" />
                        </Grid.ColumnDefinitions>
                        <Image Grid.Column="0" Source="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Tag}" Width="14" Height="14" Margin="5" HorizontalAlignment="Left" VerticalAlignment="Center" />
                        <TextBlock Grid.Column="1" Text="{TemplateBinding Content}" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="5" Foreground="{TemplateBinding Foreground}" FontSize="{TemplateBinding FontSize}" FontWeight="{TemplateBinding FontWeight}" TextAlignment="Center" />
                    </Grid>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="IsFocused" Value="True">
                        <Setter Property="Background" Value="#2B6FD5" />
                        <Setter Property="Foreground" Value="#fff" />
                    </Trigger>
                    <Trigger Property="IsMouseOver" Value="True">
                        <Setter Property="Background" Value="#2B6FD5" />
                        <Setter Property="Foreground" Value="#fff" />
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>