@activelylearn/material-ui/packages/material-ui-icons/src/BorderAll.js

Material-UI's workspace package

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

export default createSvgIcon(
  <g><path d="M3 3v18h18V3H3zm8 16H5v-6h6v6zm0-8H5V5h6v6zm8 8h-6v-6h6v6zm0-8h-6V5h6v6z" /></g>
, 'BorderAll');