How to Change the Animation of Expanding

Hello,

It runs at a decent speed when we run it.  This is part of what is in the template for PropertyGridDataAccessorItem:

<shared:AnimatedExpanderDecorator x:Name="expander" IsExpanded="{TemplateBinding IsExpanded}"
		CollapseDuration="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(themes:ExpanderThemeProperties.CollapseDuration)}"
		ExpandDuration="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(themes:ExpanderThemeProperties.ExpandDuration)}">
	<ItemsPresenter  />
</shared:AnimatedExpanderDecorator>

I believe you could probably make an implicit style in your app.Resources that targets PropertyGridDataAccessorItem and sets the attached properties for CollapseDuration and ExpandDuration to something small.  That should affect duration.