Update: Unofficial CXMB v2 from Total_Noob:

• You can disable the theme:
  1. Go to Settings->Theme settings->Theme
  2. Apply the original(Sony) theme
  3. Delete the Custom Theme
  4. It reboot to the Sony theme
• Fixed the wallpaper bug
• Supported all FWs of CXMB 3.3 by Poison and 5.02
• In the zip is also a CTF_converter.exe to convert 5.00 CTF themes for this unofficial cxmb

PSP-3000 and/or PSP-2000 owners with the TA-088v3 board can now load CTF themes without risk of bricking their handheld, thanks to Total_Noob’s unofficial version of Poison’s CXMB for Custom Firmware 5.03 GEN-A.

Total_Noob mentions 5.02 CTF compatible themes, whether or not 5.00 CTF themes are compatible, that’s a different story. Try it out and leave your experience below. We have some themes available here.

Download: Unofficial CXMB for 5.03 GEN/M33 v2

Read the original article.