Umberto: that all being said, let me know if you want me to send you the updated files and maybe you can issue a formal patch or updated installer for P3Dv2 or if I ought to just provide a tutorial for the folks that may be interested. I think the former would be far easier since adjusting the texture attributes can be a bit daunting to the uninitiated.
There's no need to change any files.
Thanks to the flexibility of our system, we can probably create an in-game menu so you can change the preferences, and we already made changes on the fly to the materials, depending if the scenery runs under P3D or FSX, which saves you from running a separate installer with configuration options.
Some users might like the bloom and, in fact, I find it to be more realistic and somewhat more in tune with KLAX, since due of the heavy light pollution in the area (a nightmare for an amateur astrophile like me....), we might imagine the airport would set the runway lights to their maximum intensity, but perhaps a choice menu might be nice for those that don't like it.
Just to be clear, there was no bug: the lights were intentionally designed to look like that...