Swift dark theme now includes a black AC CM. You use a called Arcus application to install and after installation it will work like a normal CM12 or CM13 theme.
Swift black is a popular theme of dark CM for the CyanogenMod theme engine and COS. It supports a wide range of applications and updates regularly.
+ Skype
+ Soft
+ Snapchat
+ SuperSU
+ UI system
+ Tumblr
+ tvshow Time
+ Viber
+ WhatsApp
+ Youtube
For More Info Google Play
Supported Android
{5.0 and UP}
Supported Android Version:-
Lollipop (5.0–5.0.2) or UP
Download Swift Dark CM CM13 Theme 3.2.2 APK For Android