2005, Matt Kloskowski, Extreme Photoshop CS, page 132:
What can I say about pixel art other than that the designers who create it have way too much time on their hands? All joking aside, pixel art has taken on a life of its own in recent years.
2013, Olivier Lecarme, Karine Delvare, The Book of GIMP: A Complete Guide to Nearly Everything, page 69:
The Pencil tool is useful when you want to control exactly how a pixel changes. For example, pixel art is often done using the Pencil tool with a brush size of 1 pixel […]
