We love this brand new official theme created for the anti-hero RPG, Yuusha no Kuse ni Namaikida. The retro pixelated look for the icons are great, and a lot of character to the standard PSP XMB. A wallpaper is also included with the theme, but we wanted to focus on the great pixel design.
To download the theme, click here. To install it to your PSP, connect your PSP via USB. Then, go to the PSP folder. Create a THEME sub-folder and copy the file there.