diff --git a/Makefile b/Makefile
index f1b6ea6..a324336 100644
--- a/Makefile
+++ b/Makefile
@@ -27,12 +27,11 @@ CUSTOM_COMPOSER_APPS = nc_ionos_processes
 EXTERNAL_FULL_APPS = richdocuments user_oidc viewer
 # Apps with special build targets (not in the standard categories above)
 # These apps have dedicated build_<app>_app targets with custom build logic
-SPECIAL_BUILD_APPS = nc_theming notify_push
+SPECIAL_BUILD_APPS = notify_push
 
 # Metadata for generate_apps_matrix_json: "name|path|has_npm|has_composer"
 # One entry per app in SPECIAL_BUILD_APPS — must be kept in sync.
 SPECIAL_BUILD_APPS_META = \
-	"nc_theming|apps-custom/nc_theming|false|true" \
 	"notify_push|apps-external/notify_push|false|true"
 
 # App folders to add to shipped.json (makes apps non-removable)
@@ -181,12 +180,6 @@ $(EXTERNAL_FULL_TARGETS): build_%_app:
 
 # Special build targets — custom logic that doesn't fit the standard categories
 
-build_nc_theming_app: ## Build the custom css
-	@echo "[i] Building nc_theming app..."
-	cd apps-custom/nc_theming && \
-	$(MAKE) build_css
-	@echo "[✓] nc_theming app built successfully"
-
 # notify_push binary target: downloads the pre-built binary from GitHub releases
 $(NOTIFY_PUSH_BINARY): $(NOTIFY_PUSH_DIR)/appinfo/info.xml
 	@echo "[i] Building notify_push binary target for version $(NOTIFY_PUSH_VERSION)..."
diff --git a/configs/enable-theme.config.php b/configs/enable-theme.config.php
index 2fc20c5..05c79bf 100644
--- a/configs/enable-theme.config.php
+++ b/configs/enable-theme.config.php
@@ -6,5 +6,5 @@
  */
 
 $CONFIG = [
-	'theme' => 'nc-ionos-theme',
+	'enforce_theme' => 'ionos',
 ];
diff --git a/configure.sh b/configure.sh
index 164a119..635906c 100755
--- a/configure.sh
+++ b/configure.sh
@@ -35,7 +35,7 @@ SCRIPT_DIR="$(dirname "${0}")"
 readonly SCRIPT_DIR
 NEXTCLOUD_DIR="${SCRIPT_DIR}/.."
 readonly NEXTCLOUD_DIR
-FAVICON_DIR="$(cd "${NEXTCLOUD_DIR}/apps-custom/nc_theming/img" && pwd)"
+FAVICON_DIR="$(cd "${NEXTCLOUD_DIR}/apps/theming/img" && pwd)"
 readonly FAVICON_DIR
 readonly ADMIN_USERNAME=${ADMIN_USERNAME:-admin}
 readonly ADMIN_EMAIL=${ADMIN_EMAIL:-admin@example.net}
@@ -200,7 +200,7 @@ config_ui() {
 	log_info "Configure theming"
 
 	execute_occ_command theming:config name "HiDrive Next"
-	execute_occ_command theming:config slogan "powered by IONOS"
+	execute_occ_command theming:config slogan ""
 	execute_occ_command theming:config imprintUrl " "
 	execute_occ_command theming:config privacyUrl " "
 	execute_occ_command theming:config primary_color "#003D8F"