});

        NamedDomainObjectContainer<DokkaSourceSetSpec> kotlinSourceSet = getDokkatooExtension(project).getDokkatooSourceSets();
        kotlinSourceSet.register("kotlin_dsl", spec -> {
            spec.getDisplayName().set("DSL");
            spec.getSourceRoots().from(extension.getKotlinDslSource());
            spec.getSourceRoots().from(runtimeExtensions.flatMap(GradleKotlinDslRuntimeGeneratedSources::getGeneratedSources));

                        for (final String lang : supportedLanguages) {
                            final Locale locale = LocaleUtils.toLocale(lang);
                            final String label = locale.getDisplayName(displayLocale);
                            final Map<String, String> map = new HashMap<>(2);
                            map.put(Constants.ITEM_LABEL, label);
                            map.put(Constants.ITEM_VALUE, lang);