function _getRandomColorCodeInPreset(){
            var presetColors = elements.colorsWrap.find(".btn-preset-color");
            var randomIndex = (new Date().getTime()) % presetColors.length;
            var color = presetColors.get(randomIndex).style.backgroundColor;

            return _getRefinedHexColor(color);
        }
Returns random color code in preset colors.

@private
@returns {String}