|Black Cerulean Tea Rocks|
I'm still trying to get a hold on toning, but it's basically moving color tones to be other color tones. This photo has four colors to it, a dark blue, a very light red, black, and white. I don't think Silver Efex Pro by Nik/Google has quad toning, but just the fairly standard dual tone. Hopefully I can play more with these in future photos.