[ObsoleteAttribute("This property is deprecated in Revit 2019 and will be removed in the next version of Revit The new property is 'IsMasking'")]
public FilledRegionBackground Background { get; set; }

<ObsoleteAttribute("This property is deprecated in Revit 2019 and will be removed in the next version of Revit The new property is 'IsMasking'")> _
Public Property Background As FilledRegionBackground
	Get
	Set

[ObsoleteAttribute(L"This property is deprecated in Revit 2019 and will be removed in the next version of Revit The new property is 'IsMasking'")]
public:
property FilledRegionBackground Background {
	FilledRegionBackground get ();
	void set (FilledRegionBackground value);
}