       return this      
 
     ###*
-    A new color that is a copy of the calling color with its saturation reduced by `amount`.
+    A copy of the calling color with its saturation reduced by `amount`.
 
     <code><pre>
     blue = Color(0, 0, 255)


    @name lighten
    @methodOf Color#
    @param {Number} amount Amount to lighten color by (between 0 - 1)

    @returns {Color} A new color. The lightness value is increased by `amount` from the original.
    ###

      other.a == @a

    ###*
    A copy of the calling color converted to grayscale.

    <code><pre>
    color = Color(255, 255, 0)
