anchor.diff:  
   |`:color`
   
  -|Sets the color of the cue within the grid for hinting about purpose
  -and relatedness to help operators learn and understand the interface.
  -If not specified, white is used.
  +|Sets the color of the cue within the grid for hinting about its
  +purpose and relatedness to other cues, to help operators learn and
  +understand the interface. If not specified, white is used.
   
   |===
   
  
positive.code: http://deepsymmetry.org/afterglow/doc/afterglow.effects.cues.html#var-cue[API
  documentation] for the full details.
  
  [cols="2", options="header"]
  |===
  |Parameter
  |Purpose
  
negative.code: increase from left to right, and Y coordinates increase from bottom to
  top. The web interface and registered grid controllers display 64 cues
  at a time in an 8&times;8 grid, and can be scrolled around that grid.
  The user can configue (&ldquo;link&rdquo;) the web interface to track
  the scroll position of a registered grid controller. When that is
  done, scrolling either interface will cause the other to scroll in the
  same way, so the browser window can act as documentation to help the
  user learn the cue names associated with each available cue pad on the
  controller.
  
  image::assets/ShowGrid.png[Web interface]
  
  