The lightest version of the new green when washed over a whitewashed vehicle will replace the darker greys with light green but when viewed in the game shows up as a white vehicle with a hint of green and because it is created from a grey green it blends better with shades of grey than the other two greens in the game
It has other uses as well
The three greens together with their variations. The new green looks grey compared to the other greens but not when compared to an actual greyscale grey as shown in this revision
