Recent scientific scans of Johannes Vermeer's 'Girl with a Pearl Earring' have revealed surprising details that are now invisible to the naked eye. Using macro-X-ray fluorescence scanning, researchers discovered that Vermeer originally painted a green curtain in the background, which has faded to black over centuries due to chemical changes in the pigment. They also found that the girl originally had tiny eyelashes, which have since worn away. These findings debunk the theory that she was an idealized, 'featureless' figure. Vermeer’s mastery of light is most evident in the pearl itself, which is actually just two strokes of white paint—one at the top to reflect light and one at the bottom to reflect the girl’s collar. The painting remains a 'tronie' (a character study) rather than a portrait, yet these humanizing details make her gaze feel even more intimate and haunting.