The airbrush in NPS can be used to create smooth, semitransparent strokes, useful for coloring in
an outlined image.
Mode
The two main modes of the airbrush are Noise, which is sometimes referred to as
"spraypaint" or "confetti", and Smooth, which produces a far more realistic
airbrush effect. These are labeled below the toolbox.
Shape
The airbrush can draw in either a circular or a square shape.
Intensity
The intensity of the airbrush adjusts how strongly the tool is applied to the image. A lower
number will require more brush strokes to perform the same amount of coloration.