по исполнителям:

открываем

public_html/themes/marketplace/modules/users/users.contractor.tpl

находим

<div id="userstructure" uk-offcanvas="flip: true;">
  <div class="uk-offcanvas-bar uk-background-muted">
    <button class="uk-offcanvas-close uk-btn-dangrlight shadow-dangrlight uk-border-rounded-mdm" type="button" uk-close></button>
	{USERCATEGORIES_CATALOG}
  </div>
</div>

меняем на

<div id="userstructure" uk-offcanvas="flip: true;">
  <div class="uk-offcanvas-bar uk-background-blur-silver uk-offcanvas-bar-dark uk-card-hover">
    <button class="uk-offcanvas-close uk-btn-dangrlight shadow-dangrlight uk-border-rounded-mdm" type="button" uk-close></button>
	{USERCATEGORIES_CATALOG}
  </div>
</div>

идем затем в админку, чистим дисковый кеш и проверяем