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

Material-UI's workspace package

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

export default createSvgIcon(
  <g><path d="M12 8l-6 6 1.41 1.41L12 10.83l4.59 4.58L18 14z" /></g>
, 'ExpandLess');