Timer/StopWatch - How do I make button turn to red and flash when I click Start?

[yeto]

The way my code works now is that the Start and Stop button is one in the same. The button is green. What I would like to happen is that when I click Start and the button changes to Stop I would also like for the color to change to red and to flash.

Sub startStopTimer()
    If Range("timer.button.label") = "Start" Then
        Range("time.stamp.start").Offset(Range("count.of.timestamps") + 1).Value = Now
        Range("timer.button.label") = "Stop"
    Else
        Range("time.stamp.start").Offset(Range("count.of.timestamps"), 1).Value = Now - Range("time.stamp.start").Offset(Range("count.of.timestamps"))
        Range("timer.button.label") = "Start"
    End If
End Sub

Thank you in advance for any help,
yeto

[yeto]

The way my code works now is that the Start and Stop button is one in the same. The button is green. What I would like to happen is that when I click Start and the button changes to Stop I would also like for the color to change to red and to flash.

Sub startStopTimer()
    If Range("timer.button.label") = "Start" Then
        Range("time.stamp.start").Offset(Range("count.of.timestamps") + 1).Value = Now
        Range("timer.button.label") = "Stop"
    Else
        Range("time.stamp.start").Offset(Range("count.of.timestamps"), 1).Value = Now - Range("time.stamp.start").Offset(Range("count.of.timestamps"))
        Range("timer.button.label") = "Start"
    End If
End Sub

The below is a link to the timer which I use and the page includes a link to download the worksheet/spreadsheet if needed.

https://chandoo.org/wp/building-a-si...ed-case-study/

Thank you in advance for any help,
yeto

[yeto]

I have posted this question in a different forum. Please still help if you can.

https://www.ozgrid.com/forum/forum/h...-first-clicked

[大灰狼1976]

Hi yeto!
For a simple example, Please refer to the attachment.

[yeto]

Hi yeto!
For a simple example, Please refer to the attachment.

Thank you for taking time to help. This will be very helpful.