When chart elements are highlightable depends on the value of the Display property. If the Display property is set to Never, chart elements will not be highlighted.
The HighlightFillColor and HighlightOutlineColor properties specify the fill and outline colors of the highlighting, respectively.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2