It is an add-on, this 23 toggles zip file.
If u wipe and flash the toggles, the system directory will be empty without recovery and boot/kernel files.
Hence the warning.
Sent from my GT-N7105 using xda app-developers app
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer? | Terms of Service