Represents fill formatting.
Remarks
Use the Fill property to return the ChartFillFormat object.
Example
The following example sets the foreground color, background color, and gradient for the chart area fill in myChart.
With myChart.ChartArea.Fill
.Visible = True
.ForeColor.SchemeColor = 15
.BackColor.SchemeColor = 17
.TwoColorGradient msoGradientHorizontal, 1
End With