[Q] How to change icons on a custom rom and stock launcher topic

I have Nexus 5 Lollipop 5.0.1 with a custom ROM - Cataclysm,obviously rooted. Is there any way I can change icons in the ui? (home screen and app drawer ) without any custom launcher? The best was Unicon module for Xposed but now on Android 5 I am desperate. It seems that Cataclysm will support PRO themes later, but as I've understood it doesn't change the icons.