Microsoft Is (not) Evil

How the hell does a company get to this size having overlooked such a basic feature for 30 years? Damn! Even Cadence has it.

Undo!!

Yes, for manual changes, you can undo. Run a macro and,... you're screwed.

Anyhow, to make up for it, they do let you create a macro to toggle the highlight colour of a cell :

Sub toggle_hilite()
    With Selection.Interior
        If .Color = 16777215 Then ' 25 bits all 1
            .Color = 65535
        Else
            .Pattern = xlNone
            .TintAndShade = 0
            .PatternTintAndShade = 0
        End If
     End With
End Sub