diff --git a/app/src/main/res/drawable/ic_access_time.xml b/app/src/main/res/drawable/ic_access_time.xml
index 2b1853f2..88230327 100644
--- a/app/src/main/res/drawable/ic_access_time.xml
+++ b/app/src/main/res/drawable/ic_access_time.xml
@@ -1,3 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  SPDX-FileCopyrightText: Material Design Authors / Google LLC
+  SPDX-License-Identifier: Apache-2.0
+  -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="24dp"
     android:height="24dp"
diff --git a/app/src/main/res/drawable/ic_battery_charging_full.xml b/app/src/main/res/drawable/ic_battery_charging_full.xml
index 92496d40..42c9534e 100644
--- a/app/src/main/res/drawable/ic_battery_charging_full.xml
+++ b/app/src/main/res/drawable/ic_battery_charging_full.xml
@@ -1,3 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  SPDX-FileCopyrightText: Material Design Authors / Google LLC
+  SPDX-License-Identifier: Apache-2.0
+  -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="24dp"
     android:height="24dp"
diff --git a/app/src/main/res/drawable/ic_network_warning.xml b/app/src/main/res/drawable/ic_network_warning.xml
index a2419809..8edcb161 100644
--- a/app/src/main/res/drawable/ic_network_warning.xml
+++ b/app/src/main/res/drawable/ic_network_warning.xml
@@ -1,3 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  SPDX-FileCopyrightText: Material Design Authors / Google LLC
+  SPDX-License-Identifier: Apache-2.0
+  -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="24dp"
     android:height="24dp"
diff --git a/app/src/main/res/drawable/round_sync.xml b/app/src/main/res/drawable/round_sync.xml
index ae9c1946..079f65f7 100644
--- a/app/src/main/res/drawable/round_sync.xml
+++ b/app/src/main/res/drawable/round_sync.xml
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  SPDX-FileCopyrightText: 2024 The Calyx Institute
+  SPDX-License-Identifier: Apache-2.0
+  -->
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@color/round_sync_background" />
     <foreground android:drawable="@drawable/round_sync_foreground" />
diff --git a/app/src/main/res/drawable/round_sync_foreground.xml b/app/src/main/res/drawable/round_sync_foreground.xml
index 0fdb7467..6da8f0bc 100644
--- a/app/src/main/res/drawable/round_sync_foreground.xml
+++ b/app/src/main/res/drawable/round_sync_foreground.xml
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  SPDX-FileCopyrightText: 2024 The Calyx Institute
+  SPDX-License-Identifier: Apache-2.0
+  -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="108dp"
     android:height="108dp"
diff --git a/app/src/main/res/xml/settings_scheduling.xml b/app/src/main/res/xml/settings_scheduling.xml
index d5bccf1e..e2b349c0 100644
--- a/app/src/main/res/xml/settings_scheduling.xml
+++ b/app/src/main/res/xml/settings_scheduling.xml
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  SPDX-FileCopyrightText: 2024 The Calyx Institute
+  SPDX-License-Identifier: Apache-2.0
+  -->
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
     <ListPreference