. CTF (Custom Theme Format) files allow for complete overhauls of the XMB, including animated backgrounds, custom icons, and unique system sounds. Popular 6.60 CTF Themes
One of the most sought-after collections is the —a curated set of high-quality, pre-packaged themes designed specifically for CFW 6.60. psp ctf theme pack 660 free
A typical "Pack" might include:
Modernize the interface with icons and sounds from newer Sony consoles. including animated backgrounds