text: import React from 'react';
  import { Platform } from 'react-native';
  import { HeaderButton } from 'react-navigation-header-buttons';
  import { Ionicons } from '@expo/vector-icons';
  
  import Colors from '../../constants/Colors';
  
  const CustomHeaderButton = (props) => (
    <HeaderButton
      {...props}
      IconComponent={Ionicons}
      iconSize={23}
      color={Platform.OS === 'android' ? 'white' : Colors.primary}
    />
  );
  
  export default CustomHeaderButton;
  