Public Sub TestSeries()
Dim mySeries As Series
Dim seriesCol As SeriesCollection
Dim I As Integer
I = 1
Set seriesCol = ActiveSheet.ChartObjects(1).Chart.SeriesCollection
For Each mySeries In seriesCol
Set mySeries = ActiveSheet.ChartObjects(1).Chart.SeriesCollection(I)
With mySeries
.MarkerBackgroundColor = RGB(1, 32, 43)
.MarkerForegroundColor = RGB(11, 32, 43)
.Border.Color = RGB(11, 12, 23)
End With
I = I + 1
Next
End Sub