Layers Toolkit – RRO Layers v2.2.2Requirements: 5.0+Overview: Layers Toolkit is a plugin for Layers Manager that offers a bunch of tweaks.

They work on Layers RRO theme engine, so you must have a ROM that supports it (stock Marshmallow does).
Like in all Layers themes, root is... http://www.apkformod.com/layers-toolkit-rro-layers-v2-2-2/