materialuiupgraded/packages/material-ui-icons/src/WarningOutlined.js

Material-UI's workspace package

import React from 'react';
import createSvgIcon from './utils/createSvgIcon';

export default createSvgIcon(
  <React.Fragment><path d="M1 21h22L12 2 1 21zm12-3h-2v-2h2v2zm0-4h-2v-4h2v4z" /></React.Fragment>
, 'WarningOutlined');