Default Stylesheet Before changing stylesheets you first need to know what your "primary" stylesheet is. This is set under: PeopleTools > Utilities > Administration > PeopleTools Options The default delivered stylesheet is PSSTYLEDEF. However if your environment has been rebranded then chances are another stylesheet is in use. This is also where the Branding Application Package and Branding Application Class are set. By default these are set to the PT_BRANDING application package and BrandingBase class.