Has anyone ever taken the clear blue pink dye test apart?

Before you tell me, I know you are not supposed to take apart the test! I did it on a whim and saw the second line and each testz they are 3 days in a row which seem to get darker. Not trusting it.

I am just curious is anyone has taken the test apart and if that second line is normal? It does not show on the test until taken apart. The lines are pink in person