Sony Computer Entertainment released a beautiful Bloodborne theme for PS4 on the Japanese PlayStation Store.
The theme can be found here for 324 yen, and requires a Japanese account to be purchased and downloaded.
As usual, after you install it, you’ll be able to use it with your account from any region, as long as both accounts have the PS4 set as their main console. Otherwise, you can wait and see if the theme gets released in the west in the future.
You can see a video below.