 styles.styleButton;
          }

          return (
            <span style={style} onMouseDown={this.onToggle}>
              {this.props.label}
            </span>
          );
        }
      }

      var COLORS = [
        {label: 'Red', style: 'red'},
        {label: 'Orange', style: 'orange'},
        {label: 'Yellow', style: 'yellow'},
        {label: 'Green', style: 'green'},
        {label: 'Blue', style: 'blue'},
        {label: 'Indigo', style: 'indigo'},
        {label: 'Violet', style: 'violet