You just have to loop through the slides in the presentation, like:
edit: code formattingSub changedcolor() Dim hshp As Shape Dim osld As Slide For Each osld In ActivePresentation.Slides For Each hshp In osld.Shapes With hshp If .Name Like "Google*" Then .Fill.ForeColor.RGB = RGB(50, 50, 50) .Fill.Solid End If End With Next hshp Next osld End Sub