seahub/frontend/src/pages/wiki2/custom-icon.js

import React from 'react';
import ProtoTypes from 'prop-types';

const CustomIcon = ({ icon }) => {
  return (
    <span className='nav-item-icon nav-item-icon-disable' aria-hidden="true">{icon}</span>
  );
};

CustomIcon.propTypes = {
  icon: ProtoTypes.string.isRequired,
};

export default CustomIcon;