A description of how Sol LeWitt's wall drawing was created.  I like
conceptual art's philosophy that the idea is paramount.  I'm
disappointed, however, by this description because it doesn't state how
precisely LeWitt specified the colors.  Did he specify the colors to be
mixed?  Did he specify the ratios?  Did he specify how the final color
should look?  Judging from the <a target=_blank
href="http://www.nga.gov/cgi-bin/pdimage?81692+0">one page diagram</a>,
he only specified colors in broad strokes such as "RRBB," which I assume
means mix two different colors of red with two different colors of
blue.  The particular shades appear unelaborated.