System UI constantly crashes after installing incompatible theme on CM13 I installed a theme on CyanogenMod 13 that is incompatible. Now my System UI keeps crashing.

I can't find it with the file manager. How can I delete the theme?

Is there any way I could fix this without reinstalling or factory resetting?
Although I'm still on CM12.1, I can relate to you.

Reboot to Safe Mode.
Go to Settings > Apps > (Your Theme).
Uninstall it.

Hope this answers your question.