This rather cool (at least to me) yellow and red OnePlus One style swap cover appeared on Weibo today begging a few questions.

The photo show off a nicely made cover with embossed logo and a nice textured finish, the type of build and design we would expect from a OEM rear cover. It also appears to replace the rear of the OnePlus One, not sit over the phone, as we can just make out the volume button to the side.

So what is it we have here? Is there a third party making these rather good looking style swap covers as OnePlus decided to give up on them, or is this a limited edition OnePlus One that could be heading to market soon?

Either way it looks pretty cool to us and really brightens the rear of the OPO up. What do you think?