code: function(color1, color2) {
  		var result = color1.slice();
  		for (var i=0;i<3;i++) {
  			for (var j=1;j<arguments.length;j++) {
  				result[i] += arguments[j][i];
  			}
  		}
  		return result;
  	}
docs: Add two or more colors
  @param {number[]} color1
  @param {number[]} color2
  @returns {number[]}