在wpf xaml中从继承样式更改控件的属性

I have these styles defined:

我定义了这些风格:

<Style x:Key="ImgButton" TargetType="Button">
    <Setter Property="Background" Value="Transparent"></Setter>
    <Setter Property="Height" Value="30"></Setter>
</Style>
<Style x:Key="ImgButtonWithText" TargetType="{x:Type Button}" BasedOn="{StaticResource ImgButton}">
    <Setter Property="ContentTemplate">
        <Setter.Value>
            <DataTemplate>
                <StackPanel Orientation="Horizontal">
                    <Image Name="ButtonImage" Stretch="Uniform" Height="20" Width="20" Source="">
                    </Image>
                    <TextBlock Name="ButtonText" Margin="4,0" VerticalAlignment="Center" Text=""></TextBlock>
                </StackPanel>
            </DataTemplate>
        </Setter.Value>
    </Setter>
</Style>
<Sty