Hey, do you know what happened to your tutorial concerning lightning? I found it useful when trying to experiment with lightning and ambiance, but for some reason I can't find it anymore.
I hid it because it didn't meet my standards anymore. The presentation is clunky, there's too little information as well. Natural lighting colors are now the default settings, as for the rest it's essentially "don't use fully saturated colors, natural light sources are usually warm"