code: function( c, num, variance ){
              if( arguments.length < 3 ){
                  variance = ColorRange.DEFAULT_VARIANCE;
              }
              if( arguments.length === 1 ){
                  num = c;
                  c = undefined;
              }
              var list = new ColorList();
              for( var i=0; i<num; i++){
                  list.add(this.getColor(c, variance));
              }
              return list;
          }
docs: creates a new `toxi.color.ColorList` of colors based
  on constraints of this range
  1.
  @param {Number} num integer of how many colors to get
  2.
  @param {toxi.color.TColor} c
  @param {Number} num
  @param {Number} variance
  @return {toxi.color.ColorList} list