Now that we have created our decorators, lets put them to use as the default decorators for the portal. Open jetexpress-portal/src/main/webapp/WEB-INF/pages/folder.metadata. Edit the defaults element, replacing 'jetspeed' with 'jetexpress for both layout-decorator and portlet-decorators:
<defaults layout-decorator="jetexpress"
portlet-decorator="jetexpress">
Go ahead and save that file.