The light could just be the due to the phone used to take the photo because it looks mostly white to me.
But my issue with it is that the PS button looks black, like the older v1 controllers. It should be grey like the rest of the buttons.
Again that could be just due to the shadow but it looks as if they maybe bought a fake controller, either without the PS logo or with a crappy quality one, and they took it apart to put the black PS button in from an older controller to make it look real.
Another thing is the thumbsticks, they could be worn from use, but fake ones have a flatter, less grippy texture and look like that.
Can't be certain though, would be better to get a photo of the back and top too. But a shell swap could also be a possibility, so original geniune shell with a fake controller inside.