def colors():
pass<EOL>
This is a do nothing function to provide you with help on how
matplotlib handles colors.

Commands which take color arguments can use several formats to
specify the colors.  For the basic builtin colors, you can use a
single letter

  =====   =======
  Alias   Color
  =====   =======
  'b'     blue
  'g'     green
  'r'     red
  'c'     cyan
  'm'     magenta
  'y'     yellow
  'k'     black
  'w'     white
  =====   =======

For a greater range of colors, you have two options.  You can
specify the color using an html hex string, as in::

  color = '#eeefff'

or you can pass an R,G,B tuple, where each of R,G,B are in the
range [0,1].

You can also use any legal html name for a color, for example::

  color = 'red',
  color = 'burlywood'
  color = 'chartreuse'

The example below creates a subplot with a dark
slate gray background

   subplot(111, axisbg=(0.1843, 0.3098, 0.3098))

Here is an example that creates a pale turqoise title::

  title('Is this the best color?', color='#afeeee')