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

Material-UI's workspace package

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

export default createSvgIcon(
  <g><path d="M11.99 18.54l-7.37-5.73L3 14.07l9 7 9-7-1.63-1.27-7.38 5.74zM12 16l7.36-5.73L21 9l-9-7-9 7 1.63 1.27L12 16z" /></g>
, 'Layers');