How to Install a Theme From a USB Drive to Your PlayStation 3 SUPPORTrix
How to Download and Install Themes on PS3 (OFW, USB Method) - YouTube
Custom Yakuza animated theme for PS3! - Yakuza Fan
Free bioshock theme http://www.ps3-themes.com/ type in this link and search for bioshock some cool themes honestly not sure if ps4 has free bioshock themes. : r/Bioshock