Changing Icon Bottom Shadow Colors

  Icon top and bottom shadow colors have to be well-matched
  to present the three-dimensional look of DECwindows
  Motif.  DECwindows helps you to do this by automatically
  determining top and bottom shadow colors when you change
  the icon background colors.  This option is indicated by the
  shaded Automatic shadow check button.
  To select your own Bottom shadow colors:

  1.  Click on the Automatic shadow check button.

      This option will be disabled.

  2.  Click on the Bottom Shadow button.
      DECwindows displays the Color Mixing dialog box, which
      lets you select the Bottom Shadow color you want.  You
      should use the HLS model of the color mixing dialog box
      to choose a bottom shadow color that is darker and more
      saturated than the background color.