If you see an orange smudge on your MacBook Pro display, and it does not go away, it is possible that the display coating is damaged, or pressure marks and internal display issues may be the cause, rather than dirt and other substances. One of the possible reasons for seeing an orange smudge on your MacBook display is the degradation of the display’s anti-reflective coating. This coating may deteriorate over time due to repeated cleaning of the display, exposure to heat, and contact with the keyboard, resulting in stains or smudges, which may look like an orange smudge on your display.

The other possible cause of seeing an orange smudge on your MacBook display is pressure marks on your display. This may occur when you close your macbook pro orange smudge, and the keyboard or touchpad may be pressing on your display, especially if you see dirt or other substances on your display.