“Brush” Tools
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http://www.sapdesignguild.org/community/design/selection4.asp
Mac Paint, Bill Atkinson. Out with Mac in 1984.
brush metaphor” gave non CS folk a way of thinking about creation of marks in raster-based programs—a way to define pixel values.


Gives users a way to control pixel definitions with hand-eye coord similar to some traditional arts (different from image processing…)