problem coloring sheet tab based on a condition

[mehdoush]

hey everyone

i'm using this code below to color sheet tab if string "9.9999" found in column "A" on an excel sheet.

Dim ws As Worksheet
Dim wb As Workbook
FoulTime = "99999"
Dim rng As Range

Set wb = ThisWorkbook
For Each ws In wb.Worksheets
          
         ws.Columns("a:a").AutoFit
         
    Set rng = ws.UsedRange.Find(FoulTime)
        
        If rng Is Nothing Then
        ws.Tab.ColorIndex = 4
           
        Else
        ws.Tab.ColorIndex = 3
       
              End If
             
    Next ws

recap: if "9.9999"found Color Tab = Red, if not Green.
The problem is what if wanted the Color to become red if both strings "9.9999" OR/AND "0.0000" found?

how do i do ?
thanks in advance
regards