@Override
    public void setThemeName(
        @Nonnull
        final HttpServletRequest httpServletRequest,
        final HttpServletResponse httpServletResponse,
        final String theme) {
    }
This is {@link RequestHeaderThemeResolver}.

@author Misagh Moayyed
@since 5.2.0
support/cas-server-support-themes-core/src/main/java/org/apereo/cas/services/web/RequestHeaderThemeResolver.java