Sub Blanc()
For Each X In Cells.SpecialCells(xlCellTypeConstants, 23)
If X.Font.ColorIndex = -4105 Then X.Font.ColorIndex = 2
Next
End Sub
Sub Noir()
For Each X In Cells.SpecialCells(xlCellTypeConstants, 23)
If X.Font.ColorIndex = 2 Then X.Font.ColorIndex = -4105
Next
End Sub