title: Button style in settings bar of Windows 8 store app
body: <p>I am creating Windows Store App. I use callisto library for create flyout in settings. I have problem with styling buttons. When I mouse over the background and font becomes white...</p>
  
  <p>See the picture (mouse is over second button): <img src="https://i.stack.imgur.com/gZoWD.png" alt="Pomidoro settings"></p>
  
  <p>This is my XAML file:</p>
  
  <pre><code>&lt;UserControl
  x:Class="Pomidoro.PomidoroUserControl"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  xmlns:local="using:Pomidoro"
  xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
  xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
  mc:Ignorable="d"
  d:DesignHeight="300"
  d:DesignWidth="400"&gt;
  
  &lt;Grid&gt;
      &lt;StackPanel x:Name="FlyoutContent"&gt;
          &lt;Button 
              Name="ChoosePomidoroButton" 
              Click="ChoosePomidoroButton_Click"
              Content="Choose pomidoro image..."    
              Background="LightGray"
              Foreground="Black"
              BorderBrush="Black"           
              /&gt;
          &lt;Button 
              Name="DefaultPomidoroButton" 
              Click="DefaultPomidoroButton_Click"
              Content="Set default pomidoro image"  
              Background="LightGray"
              Foreground="Black"
              BorderBrush="Black"
              /&gt;
      &lt;/StackPanel&gt;
  &lt;/Grid&gt;
  </code></pre>
  
  <p></p>
  
  <p>And this is how I create flyout in App.xaml.cs:</p>
  
  <pre><code>            // Add an Pomidoro settings
          var pomidoro = new SettingsCommand("pomidoro", "Pomidoro image", (handler) =&gt;
          {
              var settings = new SettingsFlyout();
              settings.Content = new PomidoroUserControl();
              settings.HeaderText = "Pomidoro";
              settings.IsOpen = true;
          });
  
          args.Request.ApplicationCommands.Add(pomidoro);
  </code></pre>
  
  <p>When I tried use default styles...</p>
  
  <pre><code>&lt;Button 
              Name="DefaultPomidoroButton" 
              Click="DefaultPomidoroButton_Click"
              Content="Set default pomidoro image"
              /&gt;
  </code></pre>
  
  <p>...background, border and foreground was white...and user was unable to see anything.</p>
  
  <p>What should I do to apply default style to have gray button (as it is in many apps in Store)?</p>