fab-manager/app/views/notifications_mailer/notify_user_role_update.html.erb

<%= render 'notifications_mailer/shared/hello', recipient: @recipient %>

<%
  name = Setting.find_by(name: 'fablab_name').value
  gender = Setting.find_by(name: 'name_genre').value
%>
<p><%= _t('.body.role_changed_html',
          {
              NAME: name,
              GENDER: gender,
              ROLE: t("roles.#{@attached_object.role}")
          }
       )
       # messageFormat
%></p>