text: <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  
      <Style x:Key="ButtonTopMenu" TargetType="Button">
          <Setter Property="Background" Value="Transparent" />
          <Setter Property="FocusVisualStyle" Value="{x:Null}" />
          <Setter Property="SnapsToDevicePixels" Value="True" />
          <Setter Property="VerticalAlignment" Value="Center" />
          <Setter Property="Template">
              <Setter.Value>
                  <ControlTemplate TargetType="Button">
                      <Border Background="{TemplateBinding Background}"
                              x:Name="MainBorder">                        
                              <ContentPresenter />
                      </Border>
                      <ControlTemplate.Triggers>
                          <Trigger Property="IsFocused" Value="True">
                              <Setter Property="Background" Value="{DynamicResource GlyphBrush}" TargetName="MainBorder" />
                              <Setter Property="Effect" TargetName="MainBorder">
                                  <Setter.Value>
                                      <DropShadowEffect ShadowDepth="0"
                                                        Color="White"
                                                        Opacity="0.4"
                                                        RenderingBias="Quality"
                                                        BlurRadius="5"/>
                                  </Setter.Value>
                              </Setter>
                          </Trigger>
                      </ControlTemplate.Triggers>
                  </ControlTemplate>
              </Setter.Value>
          </Setter>
      </Style>
  </ResourceDictionary>