Fig. 3
From: Unveiling why race does not affect the mask effect on attractiveness: but gender and expression do
Size of the face mask effect (positive values show an increase in attractiveness with the masks on compared to no masks) for each of the expression-by-race-by-gender categories plotted against the average rated attractiveness of those categories. A clear negative correlation can be observed. “Mask effect” is used as shorthand for effect that mask has on attractiveness such that a positive mask effect means that the mask makes the face more attractive whereas a negative mask effect mean a mask makes the face look less attractive