In earlier version it was very clearly indicated on the screen that the app was recording because the text shows RECORDING. In the last version it is only the color of the button that changes when the app records. It is nearly impossible to see when it is daylight or sunshine. Why have you removed the changing of text as it was in the earlier version?
The indication of recording must be very clear or it would be dangerous in the traffic if you should look too long time on the display to verify if the app is recording or not.