How to use the survey-creator.StylesManager function in survey-creator

widgets.icheck(SurveyKo);
widgets.select2(SurveyKo);
widgets.inputmask(SurveyKo);
widgets.jquerybarrating(SurveyKo);
widgets.jqueryuidatepicker(SurveyKo);
widgets.nouislider(SurveyKo);
widgets.select2tagbox(SurveyKo);
widgets.signaturepad(SurveyKo);
widgets.sortablejs(SurveyKo);
widgets.ckeditor(SurveyKo);
widgets.autocomplete(SurveyKo);
widgets.bootstrapslider(SurveyKo);
//widgets.emotionsratings(SurveyKo);

SurveyCreator.StylesManager.applyTheme("default");

var CkEditor_ModalEditor = {
  afterRender: function(modalEditor, htmlElement) {
    var editor = window["CKEDITOR"].replace(htmlElement);
    editor.on("change", function() {
      modalEditor.editingValue = editor.getData();
    });
    editor.setData(modalEditor.editingValue);
  },
  destroy: function(modalEditor, htmlElement) {
    var instance = window["CKEDITOR"].instances[htmlElement.id];
    if (instance) {
      instance.removeAllListeners();
      window["CKEDITOR"].remove(instance);
    }
  }

import "bootstrap-slider/dist/css/bootstrap-slider.css";

import "jquery-bar-rating/dist/themes/css-stars.css";
import "jquery-bar-rating/dist/themes/fontawesome-stars.css";

import $ from "jquery";
import "jquery-ui/ui/widgets/datepicker.js";
import "select2/dist/js/select2.js";
import "jquery-bar-rating";

//import "icheck/skins/square/blue.css";
import "pretty-checkbox/dist/pretty-checkbox.css";

import * as widgets from "surveyjs-widgets";

SurveyJSCreator.StylesManager.applyTheme("default");

//widgets.icheck(SurveyKo, $);
widgets.prettycheckbox(SurveyKo);
//widgets.select2(SurveyKo, $);
widgets.inputmask(SurveyKo);
widgets.jquerybarrating(SurveyKo, $);
widgets.jqueryuidatepicker(SurveyKo, $);
widgets.nouislider(SurveyKo);
widgets.select2tagbox(SurveyKo, $);
widgets.signaturepad(SurveyKo);
widgets.sortablejs(SurveyKo);
widgets.ckeditor(SurveyKo);
widgets.autocomplete(SurveyKo, $);
widgets.bootstrapslider(SurveyKo);

class SurveyCreator extends Component {

import "survey-creator/survey-creator.css";
import {connect} from 'react-redux';

import $ from "jquery";
import {FormControl, Select, MenuItem} from "@material-ui/core";
import {getEmployees} from "../../actions/employee";

const mapStateToProps = ({employees}) => ({
  employees
})

const mapDispatchToProps = dispatch => ({
  getEmployees: (component) => dispatch(getEmployees(component))
})

SurveyJSCreator.StylesManager.applyTheme("default");

class SurveyBuilder extends Component {

  saveSurvey = () => {
    $.ajax('/api/survey', {
      method: 'POST',
      data: JSON.stringify(this.surveyCreator.JSON),
      contentType: 'application/json'
    })
  }

  componentDidMount() {
    this.surveyCreator = new SurveyJSCreator.SurveyCreator("surveyCreatorContainer")
    this.surveyCreator.saveSurveyFunc = this.saveSurvey;
    this.props.getEmployees();
  }