Stream of Annihilation DM screen?

I was only able to catch the tail-end of the Stream of Annihilation last night, and I noticed that some of the DMs were using a DM screen that had this red dragon image on it.

I've seen the image before, but I've never seen it sold in stores as a DM screen. Is this a DM screen that will be released in stores soon? Or is it a special one that is only used by them for events like this?

Thank you!