jellyfin-web/dashboard-ui/librarydisplay.html

<div id="libraryDisplayPage" data-role="page" class="page type-interior librarySectionPage withTabs">

    <div data-role="content">
        <div class="content-primary">
            <form>
                <div>
                    <paper-checkbox class="chkFolderView">${OptionDisplayFolderView}</paper-checkbox>
                    <div class="fieldDescription paperCheckboxFieldDescription">${OptionDisplayFolderViewHelp}</div>
                </div>
                <br />
                <br />
                <button is="emby-button" type="submit" class="raised submit block"><iron-icon icon="check"></iron-icon><span>${ButtonSave}</span></button>

            </form>
        </div>
    </div>
</div>