diff --git a/vizro-core/examples/scratch_dev/app.py b/vizro-core/examples/scratch_dev/app.py
index 7a2566821..5c9dd7d9e 100644
--- a/vizro-core/examples/scratch_dev/app.py
+++ b/vizro-core/examples/scratch_dev/app.py
@@ -22,4 +22,4 @@
 dashboard = vm.Dashboard(pages=[page])
 
 if __name__ == "__main__":
-    Vizro().build(dashboard).run()
\ No newline at end of file
+    Vizro().build(dashboard).run()
diff --git a/vizro-core/src/vizro/models/_components/form/date_picker.py b/vizro-core/src/vizro/models/_components/form/date_picker.py
index a756a1194..fefa81625 100644
--- a/vizro-core/src/vizro/models/_components/form/date_picker.py
+++ b/vizro-core/src/vizro/models/_components/form/date_picker.py
@@ -64,7 +64,7 @@ def build(self):
             persistence=True,
             persistence_type="session",
             type="range" if self.range else "default",
-            allowSingleDateInRange= True,
+            allowSingleDateInRange=True,
             className="datepicker",
             # removes the default red color for  weekend days
             styles={"day": {"color": "var(--mantine-color-text"}},
diff --git a/vizro-core/src/vizro/models/_dashboard.py b/vizro-core/src/vizro/models/_dashboard.py
index 62e1f12be..94d319612 100644
--- a/vizro-core/src/vizro/models/_dashboard.py
+++ b/vizro-core/src/vizro/models/_dashboard.py
@@ -175,7 +175,7 @@ def build(self):
         return dmc.MantineProvider(
             layout,
             # Use the `theme` to style all Mantine components with a Vizro theme. For more info see https://www.dash-mantine-components.com/components/mantineprovider
-             theme = {"primaryColor": "gray"}
+            theme={"primaryColor": "gray"},
         )
 
     def _validate_logos(self):
diff --git a/vizro-core/tests/unit/vizro/models/_components/form/test_date_picker.py b/vizro-core/tests/unit/vizro/models/_components/form/test_date_picker.py
index 90e03e2df..538353e47 100644
--- a/vizro-core/tests/unit/vizro/models/_components/form/test_date_picker.py
+++ b/vizro-core/tests/unit/vizro/models/_components/form/test_date_picker.py
@@ -6,7 +6,7 @@
 import dash_mantine_components as dmc
 import pytest
 from asserts import assert_component_equal
-from dash import dcc, html
+from dash import html
 
 try:
     from pydantic.v1 import ValidationError
@@ -132,7 +132,7 @@ def test_datepicker_build(self, range, value):
                     className="datepicker",
                     # removes the default red color for  weekend days
                     styles={"day": {"color": "var(--mantine-color-text"}},
-                )
+                ),
             ],
         )
         assert_component_equal(date_picker, expected_datepicker)
diff --git a/vizro-core/tests/unit/vizro/models/test_dashboard.py b/vizro-core/tests/unit/vizro/models/test_dashboard.py
index d3e6d06da..9e321ac85 100644
--- a/vizro-core/tests/unit/vizro/models/test_dashboard.py
+++ b/vizro-core/tests/unit/vizro/models/test_dashboard.py
@@ -276,21 +276,24 @@ def test_dashboard_build(self, vizro_app, page_1, page_2):
             layout={"title": {"pad_l": 0, "pad_r": 0}, "margin_l": 24, "margin_t": 24, "margin_b": 16}
         )
 
-        expected_dashboard_container = dmc.MantineProvider(html.Div(
-            id="dashboard-container",
-            children=[
-                html.Div(id="vizro_version", children=vizro.__version__, hidden=True),
-                dcc.Store(
-                    id="vizro_themes",
-                    data={
-                        "vizro_dark": dashboard_vizro_dark,
-                        "vizro_light": dashboard_vizro_light,
-                    },
-                ),
-                ActionLoop._create_app_callbacks(),
-                dash.page_container,
-            ],
-        ), theme = {"primaryColor": "gray"})
+        expected_dashboard_container = dmc.MantineProvider(
+            html.Div(
+                id="dashboard-container",
+                children=[
+                    html.Div(id="vizro_version", children=vizro.__version__, hidden=True),
+                    dcc.Store(
+                        id="vizro_themes",
+                        data={
+                            "vizro_dark": dashboard_vizro_dark,
+                            "vizro_light": dashboard_vizro_light,
+                        },
+                    ),
+                    ActionLoop._create_app_callbacks(),
+                    dash.page_container,
+                ],
+            ),
+            theme={"primaryColor": "gray"},
+        )
         assert_component_equal(dashboard.build(), expected_dashboard_container)