Help to modify if/then statement of an existing code

Hi, 
 

I found this bit of code that works very well to go through a spreadsheet and when it finds a colored cell, it colors the corresponding header red. Works great.

https://stackoverflow.com/questions/35975076/finding-all-cells-that-have-been-filled-with-any-color-and-highlighting-correspo

I'd like to modify it though so that instead of looking for a color, it looks for the word "false" and then highlights the column header.

I've tried alot of things, but can't get the syntax correct. 

Any ideas?

Thanks,

Greg

Sub nexttry()

    Dim r1 As Range, r2 As Range, r As Range
    Dim nFirstColumn As Long, nLastColumn As Long, ic As Long

    Set r1 = ActiveSheet.UsedRange
    nLastColumn = r1.Columns.Count + r1.column - 1
    nFirstColumn = r1.column

    For ic = nFirstColumn To nLastColumn
        Set r2 = Intersect(r1, Columns(ic))
        For Each r In r2
            If r.Interior.ColorIndex <> xlNone Then
' Need new if/then statement here, something like:
'           If r = "False" then
                r2(1).Interior.ColorIndex = 3
                Exit For
            End If
        Next r
    Next ic

End Sub