I just installed CSSU Features Config (CSSUFC) this morning but it seems to be adversely affecting the Theme Customizer and the management of themes. I tried uninstalling CSSUFC but unexpectedly it had linked dependencies with the Theme Customizer, CSSU Transitions tuner, Aw0ken Icon Pack, and the Black Plastic theme packs. I removed all the dependent programs and theme packs, then CSSUFC.
I reinstalled the theme customizer, icons and themes assuming that I would then be able to reconfigure the look of my desktops, but it is still not working.
If I set theme customizer to reboot after making changes it does not start the reboot after the 'fasten seatbelts' message. If I set it so that I need to reboot manually, the changes do not take effect.
Also, the Aw0ken icon pack update interface is not able to load the icon pack.
I noticed also that since installing CSSUFC, the settings in CSSU Transitions Tuner are greyed out and cannot be altered.