title: How to Remove default button background MouseOver in wpf?
body: <p>I have three buttons on my Xaml</p>
  <pre><code>&lt;Page.Resources&gt;
      &lt;Style x:Key=&quot;GroupToggleStyle&quot; TargetType=&quot;RadioButton&quot; BasedOn=&quot;{StaticResource {x:Type ToggleButton}}&quot;&gt;
          &lt;Setter Property=&quot;Background&quot; Value=&quot;BlueViolet&quot;/&gt;
          &lt;Style.Triggers&gt;
              &lt;DataTrigger Binding=&quot;{Binding IsChecked, RelativeSource={RelativeSource Self}}&quot; 
                       Value=&quot;True&quot;&gt;
                  &lt;DataTrigger.Setters&gt;
                      &lt;Setter Property=&quot;Background&quot; Value=&quot;Red&quot;/&gt;
                  &lt;/DataTrigger.Setters&gt;
              &lt;/DataTrigger&gt;
          &lt;/Style.Triggers&gt;
      &lt;/Style&gt;
  &lt;/Page.Resources&gt;
  &lt;Grid&gt;
          &lt;RadioButton GroupName=&quot;LanguageGroup&quot; Command=&quot;{Binding LanguageChangeCommand}&quot; IsChecked=&quot;{Binding Button0}&quot; 
               CommandParameter=&quot;English&quot; Content=&quot;English&quot; Foreground=&quot;White&quot; Width=&quot;80&quot;  
               Style=&quot;{StaticResource GroupToggleStyle}&quot; FontSize=&quot;15&quot; Grid.Row=&quot;3&quot; Grid.Column=&quot;2&quot; BorderBrush=&quot;#0000ffff&quot; Height=&quot;30&quot; Margin=&quot;8,5,162,21&quot; Grid.ColumnSpan=&quot;2&quot; Background=&quot;BlueViolet&quot;&gt;
          &lt;RadioButton.Resources&gt;
              &lt;Style TargetType=&quot;Border&quot;&gt;
                  &lt;Setter Property=&quot;CornerRadius&quot; Value=&quot;5&quot;/&gt;
                  &lt;Style.Triggers&gt;
                      &lt;Trigger Property=&quot;IsMouseOver&quot; Value=&quot;False&quot;&gt;
                          &lt;Setter Property=&quot;Background&quot; Value=&quot;Red&quot;&gt;&lt;/Setter&gt;
                      &lt;/Trigger&gt;
                  &lt;/Style.Triggers&gt;
              &lt;/Style&gt;
          &lt;/RadioButton.Resources&gt;
      &lt;/RadioButton&gt;
    &lt;Grid/&gt;
  </code></pre>
  <p>But when I put mouse over my button, button's background changes to default windows gray background.
  What's The Problem?
  <a href="https://i.stack.imgur.com/T3vGu.png" rel="nofollow noreferrer">Here is a photo of my buttons</a></p>