Would subclassed WPF controls that ship with the Framework be automatically themed?
Yes, as long as you haven’t modified the templating code, it will apply automatically. For example, if you take a textbox control, subclass it, and add new events or properties, it will apply automatically. However, if you subclass it to a degree where the template VisualTree of the control is affected, skinning may be altered a bit. Fortunately, we can provide limited tech support for this, so if you have trouble skinning a subclassed control, we can help you either modify the skin or the subclassing code to resume proper skinning.
