Dark UI nexus 6 stock topic

If this has been posted I apologize however I was wondering if there is a way to switch to the dark ui for the keyboard and settings app. I pretty much have everything else covered with nova launcher prime
I am rooted
I have an unlocked boot loader
I am running a stock encrypted ROM with the ElementalX Kernel
I'd rather not use a custom ROM yet as I'm waiting for one that really catches my eye.

Thanks in advance and if you can help I will hit the thanks button!!!