update

automations/theme-switch.yaml

@@ -0,0 +1,28 @@
+# You can replace default by Light - Green, for example
+- alias: 'Set theme at startup'
+  trigger:
+  - platform: homeassistant
+    event: start
+  action:
+  - service: frontend.set_theme
+    data:
+      name: default
+- alias: 'Set HA theme for day and night'
+  trigger:
+  - platform: homeassistant
+    event: start
+  - platform: state
+    entity_id: sun.sun
+    to: above_horizon
+  - platform: state
+    entity_id: sun.sun
+    to: below_horizon
+  action:
+  - service_template: frontend.set_theme
+    data_template:
+      name: >
+        {% if states.sun.sun.state == "above_horizon" %}
+          default
+        {% else %}
+          default
+        {% endif %}