diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..dc3a058
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "themes/blackened"]
+	path = themes/blackened
+	url = https://github.com/home-assistant-community-themes/blackened.git
diff --git a/configuration.yaml b/configuration.yaml
index 3459c4e..d121175 100644
--- a/configuration.yaml
+++ b/configuration.yaml
@@ -71,3 +71,6 @@ generic_hygrostat:
     away_humidity: 60
     away_fixed: true
     sensor_stale_duration: 00:15:00
+
+frontend:
+  themes: !include_dir_merge_named themes
diff --git a/themes/blackened b/themes/blackened
new file mode 160000
index 0000000..4393cc3
--- /dev/null
+++ b/themes/blackened
@@ -0,0 +1 @@
+Subproject commit 4393cc34a92ae673884e90c2f693b2d7ec595f23