keystone: Wysiwyg TinyMCE editorConfig not working

I am trying to add the config for the TinyMCE field, but there is no change at all. I am using a config from a sample of TinyMCE website. Am I doing something wrong? I tried many ways to make it work but none worked.

const { Wysiwyg } = require('@keystonejs/fields-wysiwyg-tinymce');
fields: {
        title: { type: Text, schemaDoc: 'Title for published article' },
        text: {
            type: Wysiwyg, editorConfig: {
                plugins: [
                    'advlist autolink lists link image charmap print preview anchor',
                    'searchreplace visualblocks code fullscreen',
                    'insertdatetime media table paste code help wordcount'
                  ],
                  toolbar: 'undo redo | formatselect | ' +
                  ' bold italic backcolor | alignleft aligncenter ' +
                  ' alignright alignjustify | bullist numlist outdent indent |' +
                  ' removeformat | help',
                content_css: [
                    '//fonts.googleapis.com/css?family=Lato:300,300i,400,400i',
                    '//www.tiny.cloud/css/codepen.min.css'
                ]
            }
        },
}