ToolWindow Styles

Hi,

I'm building (well actually just styling) an app that uses Dockable ToolWindows. The basic structure is

<DockPanel>

<docking:DockSite>

<docking:SplitContainer>

<docking:ToolWindowContainer>

<docking:ToolWindow>

<TextBlock Title="CONTENT HERE">

</docking:ToolWindow>

</docking:ToolWindowContainer>

</docking:SplitContainer>

</docking:DockSite>

</DockPanel>

I have got the styles templates for the Docking plugin and have full control over the base styles for the DockSite and ToolWindowContainer but I am having a real problem controlling the ToolWindow styles. As this is the section where I can control the look and feel of the actual tabs it would be really useful to know how to style them. At the moment I am altering the ToolWindowStyleKey but this having no effect. I can control the style by writing out the styles directly in the ToolWindow nodes of the MainWindow.xaml but I want to be able to write a base style that automatically controls all of them.

Can anyone help me target the specific style I need to alter in order to control the ToolWindow and therefore the actual tabs?

Thanks,

Steve.