Grey Keeps Its Voice Down
On an overcast day nothing has gone missing; the light has only stopped taking sides.
An overcast morning takes the shadows away, and most people file that under loss. What actually leaves is the argument between the lit side and the dark side of things. What stays is each object's own color, spoken at a lower volume. A red door under a flat sky is still red, it simply no longer has to announce it.
Anyone who photographs in grey weather learns early that grey is a range, not a point. Wet stone leans blue, old plaster leans yellow, sea fog sits between the two and shifts with distance. Put them side by side and the eye separates them immediately, even when a color picker insists all three are close to neutral.
That narrow range is exactly what makes grey usable behind a desktop. Icons keep their own colors, folders stay findable, and the only saturated thing on the screen is whatever you put there yourself. A grey wallpaper is less a picture to look at than a room with the light left on.