Sub CouleursPlagesNommées()
Dim nom As Name, plage As Range
For Each nom In ThisWorkbook.Names
If TypeName(Evaluate(nom.Name)) = "Range" Then Set plage = Union(IIf(plage Is Nothing, Range(nom.Name), plage), Range(nom.Name))
Next
If plage Is Nothing Then Exit Sub
With plage.Interior
.Pattern = xlLightUp
.PatternColorIndex = xlAutomatic
.Color = 13434879
.TintAndShade = 0
.PatternTintAndShade = 0
End With
End Sub