DXTabControl Integration
Use the WindowKind property to integrate the DXTabControl with a ThemedWindow:
<dx:ThemedWindow x:Class="Example.MainWindow"
...
xmlns:dx="http://schemas.devexpress.com/winfx/2008/xaml/core" WindowKind="Tabbed">
<dx:DXTabControl>
<dx:DXTabItem Header="Map">
<!-- Map Control -->
</dx:DXTabItem>
<dx:DXTabItem Header="Grid">
<!-- Grid Control -->
</dx:DXTabItem>
</dx:DXTabControl>
</dx:ThemedWindow>
The following image illustrates the result: