You Need to have a ROM that allows Contextual Headers. You can change to v2 with Arcus. This is a Theme for a Custom ROM using the CyanogenMod Theme Engine version 12 and 13. If your Device Bootloops go to /data/system/theme with TWRP and delete "bootanimation. Zip" this should fix your Bootloop. Also send me a report to sitischu@hotmail.