title: Button FontWeight doesn't work
body: <p>I try to set fontWeight of an Button but font weight is still the same.</p>
  
  <p>My button</p>
  
  <pre><code>&lt;Button x:Name="MyButton"
      Grid.Row="3"
      FontWeight="Bold"
      Content="something"
      Padding="16,10,12,12"
      FontSize="24"
      Background="White"
      Foreground="#400000"
      HorizontalContentAlignment="Left" /&gt;
  </code></pre>
  
  <p>How can I solve this problem?</p>