_expression_ A variable that represents a **FillFormat** object. A gradient fill can be specified in the formatting for various elements (shapes) in a chart. For example, you can use the **Format Data ...
Returns a [PictureEffects](Office.PictureEffects.md) object that can be used to apply picture effects to the specified fill formatting. Read-only. You use the [Insert](Office.PictureEffects.Insert.md) ...