YACMR is based on cm 14 branch cm-14.1 for OnePlus One. There are no UI customizations added to this ROM. Only changes from CM are

(1) OpenDelta updater is used instead of CMupdater. (2) UBERTC 5.3 used for building (3) Resurrected Kernal used insteaad of CM 14 Kernel

Only branch stable/cm-14.1 is maintained/upstream merged.