Thank you for contacting us.
Currently defined for RadDock are the following themes:
- Office 2007 Blue, Silver and Black
Since Q3 2009 we have improved the logic which serializes a BackColor value at design-time. It should now be persisted only if explicitly set by the user. Till now however the BackColor was altered directly by the applied theme and was locally persisted by the designer and this was breaking the default Windows Forms BackColor inheritance. In order to fix the problem you may need to manually go through all *Designer.cs files and remove any BackColor serialized for RadDock components - DocumentContainer, ToolTabStrip, etc. This will ensure that when you change a theme, all nested controls will inherit it from their parent.
Regarding the scrollbars - DockWindow actually uses the default .NET ContainerControl and scrollbars are what comes from the system. What you may do is utilize our new for Q3 control - RadScrollablePanel - and use it as a content for your dock windows.
I hope this helps. Do not hesitate to contact us if you have other questions.
the Telerik team