Returns or sets the marker background color as an RGB value. Applies only to line, scatter, and radar charts. Read/write Long.
Example
This example sets the marker background and foreground colors for the second point in series one.
With myChart.SeriesCollection(1).Points(2)
.MarkerBackgroundColor = RGB(0,255,0) ' green
.MarkerForegroundColor = RGB(255,0,0) ' red
End With