Personally these phanteks items (case rgb, led strips and halos etc) all sync with Asus aura sync or other motherboards lighting. You can daisy chain LED strips, the halos (fan mounts that give any fan rgb with the newer digital ones being addressable) and also sync rgb cpu water blocks and gpu blocks etc, these are all now digital and run off of your motherboards 5v digital addressable header and phanteks sell the cables to connect and sync case and all accessories to your board... if you don't like addressable then they also sell the cables and accessories to connect an array of standard rgb items to your standard 12v motherboards rgb header also.
It will look amazing to have the proper phanteks 120 or 240mm white bladed fans with the digital halos, not only do the halos allow you to turn any fan into rgb but with the specific white bladed fans the colours really do pop...
If you look into phanteks water cooling and their rgb stuff, you can really imagine a whole phanteks water cooled system inside this case with all the halos over the phanteks white bladed fans and over your rads etc, both cpu and gpu water blocks and all syncing in harmony to say asus aura sync. (along with compatible rgb ram of course lol)...
A lot of people hate rgb but I personally love it if it's done right.