PlotArea Property
Returns a ChPlotArea object that represents the plot area on the specified chart. Note that pie, doughnut, radar, and polar charts do not have plot areas.
expression.PlotArea
expression Required. An expression that returns a ChChart object.
Example
This example sets the interior color for the plot area on the specified chart.
ChartSpace1.Charts(0).PlotArea.Interior.Color = "Green"