Translucency in camera

The camera command allows the player to set their camera position, but also allows you to fade a color on screen. /camera @s fade color 255 255 255 would make your screen fade white, but for some stuff I need some extra option fol translucency, as the color only makes solid colors. Something for center screen translucency or just full screen translucency would be great, and make it much easier to make maps.