Here is a breakdown of this feature and how to use it to drastically improve your PSP experience.
If you are running Custom Firmware (CFW) 6.60 on your PSP 1000, 2000, 3000, or Go, you have likely heard of CTF themes. Unlike simple PTF themes that only change the background and icons, CTF themes completely overhaul the XMB (Cross Media Bar)—adding custom waves, sounds, game boots, and animated icons. psp ctf theme pack 660
A refined version that shrinks the XMB icons to fit more on the screen at once and adds the iconic PS3 "sparkle" wave. Here is a breakdown of this feature and
Applying a CTF theme pack on 6.60 requires: psp ctf theme pack 660