I've got the Problem, that Toolkits Themes just don't wanna apply. I've installed Silverlight RC 5, Toolkit 5 and are running in Visual Studio 2010 with a Project in Silverlight 3(doesnt offered me Silverlight 4 or higher though).
Well, I read a thousands of Tutorials but I cannot see my mistake. I am able to use those Controls of the Toolkit properly, but the Theme...just won't apply.
Here's the code:
<UserControl x:Class="Wissensmanagement.Controls.PCategory"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:controlsToolkit="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Toolkit"
xmlns:theming="clr-namespace:System.Windows.Controls.Theming;assembly=System.Windows.Controls.Theming.Toolkit"
xmlns:dark="clr-namespace:System.Windows.Controls.Theming;assembly=System.Windows.Controls.Theming.ExpressionDark"
mc:Ignorable="d"
d:DesignHeight="50" d:DesignWidth="625">
<Grid x:Name="LayoutRoot">
<dark:ExpressionDarkTheme>
<StackPanel HorizontalAlignment="Left">
<Button Width="60" Height="30" x:Name="btnLoad" HorizontalAlignment="Left" Content="Test" />
<controlsToolkit:Expander Header="test"/>
</StackPanel>
</dark:ExpressionDarkTheme>
</Grid>
And here is, what I See:
http://imageshack.us/photo/my-images/207/94160286.png/
If there were any hints, I would be appreciated =/