Lynes CM12.1/CM13 Theme v3.0Requirements: 5.0+Overview: Lynes is a cyanogenmod 12.1/13 theme which gives the user interface a radical and edgy makeover. 

The android system is extensively themed to look like nothing you have ever seen before. System icons follow a slim profile ... http://www.apkformod.com/lynes-cm12-1cm13-theme-v3-0/