CTFtool GUI v5 Beta is released. CTFtool GUI is a handy homebrew app that allows you to create and convert CTF themes for your homebrewed PSP.

CTFtool GUI v5 Beta Changelog:
* Support for conversion between 500-503-550-620-635-637 CTF theme
* Updated CXMB, support 3.71-6.37
* Add 6.37CTF theme pack / unpack
* PRXeditor update to v2.1.1, to support legacy ini import bookmarks
* Updated PRX conversion module and the version currently supports the following conversion between PRX
paf.prx (500 - 550 - 620 - 631 - 635 - 637)
vshmain.prx (500 - 550 - 620 - 631 - 635 - 637)
common_gui.prx (500 - 550 - 620 - 631 - 635 - 637)
opening_plugin.prx (500 - 550 - 620 - 631 - 635 - 637)
sysconf_plugin.prx (500 - 550 - 620 - 631 - 635 - 637)
music_player.prx (500 - 550 - 620 - 631 - 635 - 637)
visualizer_plugin.prx (500 - 550 - 620 - 631 - 635 - 637)
game_plugin.prx (500 - 550)
htmlviewer_plugin.prx (500 - 550 - 620 - 631 - 635 - 637)
content_browser.prx (500 - 550 - 620 - 631 - 635 - 637)
photo_browser.prx (500 - 550 - 620 - 631 - 635 - 637)
music_browser.prx (500 - 550) (620 - 631 - 635 - 637)
photo_player.prx (500 - 550) (620 - 631 - 635 - 637)
rss_browser.prx (500 - 550)
rss_main_plugin.prx (500 - 550)
osk_plugin.prx (620 - 631 - 635 - 637)
* Update RCO converter module, the version currently supports the following conversion between RCO
topmenu_icon.rco (500 - 550 - 620 - 635/637)
topmenu_plugin.rco (500 - 550 - 620 - 635/637)
system_plugin.rco (500 - 550 - 620 - 635/637)
game_plugin.rco (500 - 550 - 620 - 635/637)
visualizer_plugin.rco (500 - 550 - 620 - 635/637)
opening_plugin.rco (500 - 550 - 620 - 635/637)
sysconf_plugin.rco (500 - 550 - 620 - 635/637)
impose_plugin.rco (500 - 550 - 620 - 635/637)
msvideo_main_plugin.rco (500 - 550 - 620 - 635/637)
system_plugin_fg.rco (500 - 550 - 620 - 635/637)
photo_browser_plugin.rco (500 - 550 - 620 - 635/637)
music_browser_plugin.rco (500 - 550 - 620 - 635/637)
osk_plugin_500.rco (500 - 550 - 620 - 635/637)
* Fixed various bug

Download: CTFtool GUI v5 Beta
Source: Here