text: import React from 'react';
  import PropTypes from 'prop-types';
  import { StyleSheet } from 'react-native';
  
  import Button from './Button';
  
  const DrawerButton = ({ onPress }) => (
    <Button color="black" style={styles.component} title="☰" onPress={onPress} />
  );
  
  DrawerButton.propTypes = {
    onPress: PropTypes.func.isRequired,
  };
  
  export default DrawerButton;
  
  const styles = StyleSheet.create({
    component: {
      backgroundColor: 'transparent',
    },
  });
  