What is Airbrushing?
Airbrushing as a noun refers to painted detail on a cel done with an airbrush. This looks like a soft small spray painting. It is used for many special effects including rain, halos, glowing, blushing, dust, wind, and very fine detailing. Airbrushing on a cel is very fragile and easily scraped/marred. It is generally done on the front of a cel.