XenonHD is a custom firmware aka ROM for various Android devices. It is built from Android Open Source Project (AOSP) with additional features, performance and battery life improvements.
The idea behind XenonHD is to give users a ROM that is "blazing fast, rock stable and buttery smooth".
How to use the layers theme engine
Official MEGA RRO Layers Overlays Collection
Here is the youtube guide youtube.com
Copy the downloaded ROM to your phone.
Boot into your recovery
Back up your ROM
Make a full wipe (system, data, cache, dalvik). If you're updating rom or have other 5.1 already you don't need to wipe data (wipe system, cache, dalvik)
Install the ROM
Install GAPPS package
Reboot - the first boot can take up to 5 minutes
XenonHD, ROM for the Samsung Galaxy S 4 Mini
kn06497, Epirex, XperiAMM, NV-Dev
Source Code: https://github.com/TeamHorizon
ROM OS Version: 6.0.x Marshmallow
ROM Kernel: Linux 3.4.x
ROM Firmware Required: Rooted and TWRP recovery
Based On: AOSP
Last Updated 2016-07-13