title: how to highlight tiles of MahApps.Metro on mouseover?
body: <p>I've just discovered a very great UI toolkit for WPF: MahApps.Metro.
  I created a window with tiles of type MahApps.Metro.Controls.Tile.</p>
  
  <p>I am not able to find the right way to highlight a tile when the mouse passes over.</p>
  
  <p>Do you know how can I do that?
  Do I need to use templates and storyboard (seems to be a bit complex to set up...) ?</p>
  
  <p>Thank you</p>
  
  <p>[EDIT]
  Here is the control with the tiles:</p>
  
  <pre><code>&lt;mah:TransitioningContentControl x:Name="LeftControl" Grid.Row="1" Grid.Column="1"  Transition="Default"  HorizontalAlignment="Left"&gt;
      &lt;WrapPanel x:Name="SearchPanel" Width="400" Height="500" HorizontalAlignment="Left" VerticalAlignment="Top"&gt;
          &lt;mah:Tile x:Name="CategoriesTile" Title="Catégories" Style="{StaticResource SearchTileStyle}" Click="ButtonBase_OnClick" /&gt;
          &lt;mah:Tile x:Name="TagsTile" Title="Tags" Style="{StaticResource SearchTileStyle}"  Click="ButtonBase_OnClick"/&gt;
          &lt;mah:Tile x:Name="SearchTile" Title="Recherche" Style="{StaticResource SearchTileStyle}" /&gt;
          &lt;mah:Tile  x:Name="FavoritesTile" Title="Favoris" Style="{StaticResource SearchTileStyle}" /&gt;
          &lt;mah:Tile x:Name="AssistantTile" Title="Assistant" Style="{StaticResource SearchTileStyle}" /&gt;
      &lt;/WrapPanel&gt;
  &lt;/mah:TransitioningContentControl&gt;
  </code></pre>
  
  <p>Here is the style that I use for the tiles (in a dictionary):</p>
  
  <pre><code>&lt;Style x:Key="SearchTile" TargetType="mah:Tile"&gt;
      &lt;Setter Property="Width" Value="150" /&gt;
      &lt;Setter Property="Height" Value="150" /&gt;
      &lt;Setter Property="TitleFontSize" Value="16" /&gt;
      &lt;Setter Property="Background" Value="{StaticResource SearchTileBrush}" /&gt;
      &lt;Setter Property="Margin" Value="3" /&gt;
  &lt;/Style&gt;
  </code></pre>
  
  <p>I would like to be able to change the background color or to add a border on mouse over.
  If possible, I would like to be able too to change the mouse cursor on mouse over.</p>
  
  <p>I do not know if I could you triggers to do that.</p>
  
  <p>[EDIT]
  mah:Tile inherits from System.Windows.Controls.Button.
  Thank you</p>