diff --git a/invenio_theme/ext.py b/invenio_theme/ext.py
index b1940a86..e37c7875 100644
--- a/invenio_theme/ext.py
+++ b/invenio_theme/ext.py
@@ -9,20 +9,10 @@
 
 """Invenio standard theme."""
 
-from flask import Blueprint
+from flask_menu import Menu
 
 from . import config
 from .icons import ThemeIcons
-from .proxies import current_theme_icons
-from .shared import menu
-from .views import (
-    blueprint,
-    insufficient_permissions,
-    internal_error,
-    page_not_found,
-    too_many_requests,
-    unauthorized,
-)
 
 
 class InvenioTheme(object):
@@ -47,33 +37,9 @@ def init_app(self, app, **kwargs):
         """
         self.init_config(app)
 
-        # Register blueprint in order to register template and static folder.
-        app.register_blueprint(
-            Blueprint(
-                "invenio_theme",
-                __name__,
-                template_folder="templates",
-                static_folder="static",
-            )
-        )
-
-        # Register frontpage blueprint if enabled.
-        if app.config["THEME_FRONTPAGE"]:
-            app.register_blueprint(blueprint)
-
-        # Register errors handlers.
-        app.register_error_handler(401, unauthorized)
-        app.register_error_handler(403, insufficient_permissions)
-        app.register_error_handler(404, page_not_found)
-        app.register_error_handler(429, too_many_requests)
-        app.register_error_handler(500, internal_error)
-
-        # Register context processor
-        @app.context_processor
-        def _theme_icon_ctx_processor():
-            return {"current_theme_icons": current_theme_icons}
-
-        app.context_processor(lambda: {"menu": menu})
+        self.menu_ext = Menu(app)
+
+        app.context_processor(lambda: {"current_theme_icons": self.icons})
 
         # Save reference to self on object
         app.extensions["invenio-theme"] = self
diff --git a/invenio_theme/shared.py b/invenio_theme/shared.py
index 2ee7ef67..68166a05 100644
--- a/invenio_theme/shared.py
+++ b/invenio_theme/shared.py
@@ -8,6 +8,6 @@
 
 """Invenio standard theme."""
 
-from flask_menu.menu import MenuRoot
+from flask_menu.menu import MenuNode
 
-menu = MenuRoot("", None)
+menu = MenuNode("", None)
diff --git a/invenio_theme/views.py b/invenio_theme/views.py
index 58ceeb15..ee7f64bc 100644
--- a/invenio_theme/views.py
+++ b/invenio_theme/views.py
@@ -2,7 +2,7 @@
 #
 # This file is part of Invenio.
 # Copyright (C) 2015-2018 CERN.
-# Copyright (C) 2022 Graz University of Technology.
+# Copyright (C) 2022-2023 Graz University of Technology.
 #
 # Invenio is free software; you can redistribute it and/or modify it
 # under the terms of the MIT License; see LICENSE file for more details.
@@ -11,10 +11,28 @@
 
 from flask import Blueprint, current_app, render_template
 
-blueprint = Blueprint("invenio_theme_frontpage", __name__)
+
+def create_blueprint(app):
+    """Create blueprint."""
+    blueprint = Blueprint(
+        "invenio_theme_frontpage",
+        __name__,
+        template_folder="templates",
+        static_folder="static",
+    )
+
+    if app.config["THEME_FRONTPAGE"]:
+        blueprint.add_url_rule("/", "index", view_func=index)
+
+    app.register_error_handler(401, unauthorized)
+    app.register_error_handler(403, insufficient_permissions)
+    app.register_error_handler(404, page_not_found)
+    app.register_error_handler(429, too_many_requests)
+    app.register_error_handler(500, internal_error)
+
+    return blueprint
 
 
-@blueprint.route("/")
 def index():
     """Simplistic front page view."""
     return render_template(
diff --git a/setup.cfg b/setup.cfg
index 24b61e68..b78aeb2c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -27,7 +27,7 @@ packages = find:
 python_requires = >=3.7
 zip_safe = False
 install_requires =
-    Flask-Menu>=1.0.0
+    Flask-Menu>=0.5.0
     invenio-assets>=1.2.7
     invenio-base>=1.2.5
     invenio-i18n>=2.0.0
@@ -46,6 +46,8 @@ invenio_assets.webpack =
     invenio_theme = invenio_theme.webpack:theme
 invenio_base.apps =
     invenio_theme = invenio_theme:InvenioTheme
+invenio_base.blueprints =
+    invenio_theme = invenio_theme.views:create_blueprint
 invenio_i18n.translations =
     messages = invenio_theme
 
diff --git a/tests/conftest.py b/tests/conftest.py
index 121e8f33..683de503 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -2,7 +2,7 @@
 #
 # This file is part of Invenio.
 # Copyright (C) 2015-2018 CERN.
-# Copyright (C) 2022 Graz University of Technology.
+# Copyright (C) 2022-2023 Graz University of Technology.
 #
 # Invenio is free software; you can redistribute it and/or modify it
 # under the terms of the MIT License; see LICENSE file for more details.
@@ -10,19 +10,47 @@
 
 """Pytest configuration."""
 
-import os
+
 import shutil
-import tempfile
 
 import jinja2
 import pytest
 from flask import Flask
+from flask_webpackext.manifest import (
+    JinjaManifest,
+    JinjaManifestEntry,
+    JinjaManifestLoader,
+)
 from helpers import make_fake_template
 from invenio_assets import InvenioAssets
 from invenio_i18n import Babel, InvenioI18N
 from invenio_i18n.views import create_blueprint_from_app
 
 from invenio_theme import InvenioTheme
+from invenio_theme.views import create_blueprint
+
+
+#
+# Mock the webpack manifest to avoid having to compile the full assets.
+#
+class MockJinjaManifest(JinjaManifest):
+    """Mock manifest."""
+
+    def __getitem__(self, key):
+        """Get a manifest entry."""
+        return JinjaManifestEntry(key, [key])
+
+    def __getattr__(self, name):
+        """Get a manifest entry."""
+        return JinjaManifestEntry(name, [name])
+
+
+class MockManifestLoader(JinjaManifestLoader):
+    """Manifest loader creating a mocked manifest."""
+
+    def load(self, filepath):
+        """Load the manifest."""
+        return MockJinjaManifest()
 
 
 @pytest.fixture()
@@ -31,10 +59,15 @@ def app():
     app = Flask("myapp")
     app.config.update(
         I18N_LANGUAGES=[("en", "English"), ("de", "German")],
+        THEME_FRONTPAGE=False,
+        APP_THEME=["semantic-ui"],
+        WEBPACKEXT_MANIFEST_LOADER=MockManifestLoader,
     )
     Babel(app)
     InvenioI18N(app)
+
     app.register_blueprint(create_blueprint_from_app(app))
+    app.register_blueprint(create_blueprint(app))
 
     def delete_locale_from_cache(exception):
         """Unset locale from `flask.g` when the request is tearing down."""
@@ -67,6 +100,8 @@ def app_error_handler(request):
     # Setting by default fake.html as a THEME_ERROR_TEMPLATE
     app.config["THEME_ERROR_TEMPLATE"] = "invenio_theme/fake.html"
 
+    app.config["APP_THEME"] = ["semantic-ui"]
+
     # Tear down method to clean the temp directory.
     def tear_down():
         shutil.rmtree(temp_dir)
@@ -77,6 +112,8 @@ def tear_down():
     Babel(app)
     InvenioI18N(app)
     InvenioTheme(app)
+
+    app.register_blueprint(create_blueprint(app))
     return app
 
 
@@ -100,6 +137,7 @@ def app_frontpage_handler(request):
     # Setting by default fake.html as a BASE_TEMPLATE
     app.config["BASE_TEMPLATE"] = "invenio_theme/fake.html"
     app.config["THEME_FRONTPAGE"] = True
+    app.config["APP_THEME"] = ["semantic-ui"]
 
     # Tear down method to clean the temp directory.
     def tear_down():
@@ -112,4 +150,6 @@ def tear_down():
     InvenioI18N(app)
     InvenioTheme(app)
     InvenioAssets(app)
+
+    app.register_blueprint(create_blueprint(app))
     return app
diff --git a/tests/test_invenio_theme.py b/tests/test_invenio_theme.py
index 59416052..8c0da25c 100644
--- a/tests/test_invenio_theme.py
+++ b/tests/test_invenio_theme.py
@@ -187,6 +187,8 @@ def index():
 def test_frontpage_not_exists(app):
     """Test the frontpage that doesn't exist."""
     # Before configure the frontpage
+    InvenioTheme(app)
+    InvenioAssets(app)
     with app.test_client() as client:
         response = client.get("/")
         assert response.status_code == 404