@sparkpost/matchbox/src/icons/add.js

A design system

import React from 'react';
import Icon from 'react-icon-base';

const MdAdd = (props) => (
  <Icon viewBox="0 0 40 40" {...props}>
    <g><path d="m31.6 21.6h-10v10h-3.2v-10h-10v-3.2h10v-10h3.2v10h10v3.2z"/></g>
  </Icon>
);

export default MdAdd;