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".
Base : Lollipop 5.1.1_r8 : FULL AOSP BASE FROM SOURCE.
It's Rockstable,Blazing fast.
and now Buttery Smooth too!
Download in post #2
Changelog in post #3
Screen shots in post #4
WHAT IS RRO?
Many of you may be new to RRO so let's give you a brief overview of what it is.
On the surface, RRO seems to be like your standard themer you'll find from any rom especially in CyanogenMod.
RRO is a new kid in the block and isn't as sophisticated as the CM Theme Engine but it is indefinitely more efficient and more customizable (More on that later).
Have you somehow liked the way the Sony Theme Engine worked? It was indeed a project from the RRO Interface but with Sony's own tweaks. If you are able to guess, the Sony Theme Engine has its flaws and shares some of the same fate as the RRO Theming Engine.
Ever since the rise of CyanogenMod, Google and its affliates seem to have responded to the call for more customizabilty by Improving the Original RRO Engine and then officially releasing it as part of AOSP in the Lollipop Releases although it can still be found in some form or another in the earlier versions of Android.
Now since the new RRO Engine was released, it turned out to be the very thing that the CM Theme Engine feared, a worthy competitor. Unlike RRO, the CM Theme Engine uses loads (and I really mean LOADS) of code in implementing it. Patching it again and again, the CM Theme Engine seem to be reluctant to absorb into the possibilities of RRO trying to stay away from the Google Way.
Unlike the CM Theme Engine, RRO uses and accesses the resources of the whole OS and opens it up for the user to customize and utilize. Right now, it seems very difficult to get a hold of but once you get started in using it, you'll realize how much potential RRO can do for you.
The downside of RRO is that unlike the CM Theme Engine, it is very difficult to ensure that things run smoothly. Some newbie developers may publish RRO Themes to the play store and may have missing resources. (I'm sure the inexperienced developer pool will reduce if given time and leniency)
Like @miki.cis has shown, some themes can cause crashes to the system including the Reboot Menu due to missing resources. When there's a missing resource, the system is stuck and takes the easy way out by rebooting. (I can see this being remedied in the future though).
So as a result, RRO Layers is a dragon that can be tamed if properly utilized and given the time to mature. I hope those who are trying RRO for the first time be lenient to the new RRO Layers Engine and its new generation of Themers.
enricocid (Boot animation)
XenonHD (Unofficial Built From Source), ROM for the Sony Xperia SP
ROM OS Version: 5.1.1 Lollipop
Last Updated 2015-09-17