Hello Jason,

I have been looking into your post and you can achieve a similar functionality using triggers like e.g. :

     xmlns:themes="http://infragistics.com/Themes"

        xmlns:igWindows="http://infragistics.com/Windows"

 …

     <Style TargetType="{x:Type igWindows:CarouselListBoxItem}" BasedOn="{x:Static themes:PrimitivesGeneric.CarouselPanelItem}">

                <Style.Triggers>

                    <Trigger Property="IsMouseOver" Value="True">

                        <Setter Property="Background" Value="SkyBlue"/>

                        <Setter Property="FontWeight" Value="Bold"/>

                    </Trigger>

                </Style.Triggers>

            </Style>

Let me know, if you need any further assistance on this matter.