diff --git a/uhabits-android/src/main/res/drawable/ic_action_add_dark.xml b/uhabits-android/src/main/res/drawable/ic_action_add_dark.xml
index 799ee9e75..b82a35857 100644
--- a/uhabits-android/src/main/res/drawable/ic_action_add_dark.xml
+++ b/uhabits-android/src/main/res/drawable/ic_action_add_dark.xml
@@ -1,22 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (C) 2016-2021 Álinson Santos Xavier <git@axavier.org>
-  ~
-  ~ This file is part of Loop Habit Tracker.
-  ~
-  ~ Loop Habit Tracker is free software: you can redistribute it and/or modify
-  ~ it under the terms of the GNU General Public License as published by the
-  ~ Free Software Foundation, either version 3 of the License, or (at your
-  ~ option) any later version.
-  ~
-  ~ Loop Habit Tracker is distributed in the hope that it will be useful, but
-  ~ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-  ~ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-  ~ more details.
-  ~
-  ~ You should have received a copy of the GNU General Public License along
-  ~ with this program. If not, see <http://www.gnu.org/licenses/>.
-  -->
+<!-- Copyright (C) 2013 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
 
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="32dp"
diff --git a/uhabits-android/src/main/res/drawable/ic_action_archive_dark.xml b/uhabits-android/src/main/res/drawable/ic_action_archive_dark.xml
index 6489b4f05..86598bd41 100644
--- a/uhabits-android/src/main/res/drawable/ic_action_archive_dark.xml
+++ b/uhabits-android/src/main/res/drawable/ic_action_archive_dark.xml
@@ -1,22 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (C) 2016-2021 Álinson Santos Xavier <git@axavier.org>
-  ~
-  ~ This file is part of Loop Habit Tracker.
-  ~
-  ~ Loop Habit Tracker is free software: you can redistribute it and/or modify
-  ~ it under the terms of the GNU General Public License as published by the
-  ~ Free Software Foundation, either version 3 of the License, or (at your
-  ~ option) any later version.
-  ~
-  ~ Loop Habit Tracker is distributed in the hope that it will be useful, but
-  ~ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-  ~ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-  ~ more details.
-  ~
-  ~ You should have received a copy of the GNU General Public License along
-  ~ with this program. If not, see <http://www.gnu.org/licenses/>.
-  -->
+<!-- Copyright (C) 2013 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
 
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="32dp"
diff --git a/uhabits-android/src/main/res/drawable/ic_action_cancel.xml b/uhabits-android/src/main/res/drawable/ic_action_cancel.xml
index 8576a3abc..611c1ba39 100644
--- a/uhabits-android/src/main/res/drawable/ic_action_cancel.xml
+++ b/uhabits-android/src/main/res/drawable/ic_action_cancel.xml
@@ -1,22 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (C) 2016-2021 Álinson Santos Xavier <git@axavier.org>
-  ~
-  ~ This file is part of Loop Habit Tracker.
-  ~
-  ~ Loop Habit Tracker is free software: you can redistribute it and/or modify
-  ~ it under the terms of the GNU General Public License as published by the
-  ~ Free Software Foundation, either version 3 of the License, or (at your
-  ~ option) any later version.
-  ~
-  ~ Loop Habit Tracker is distributed in the hope that it will be useful, but
-  ~ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-  ~ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-  ~ more details.
-  ~
-  ~ You should have received a copy of the GNU General Public License along
-  ~ with this program. If not, see <http://www.gnu.org/licenses/>.
-  -->
+<!-- Copyright (C) 2013 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
 
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="32dp"
diff --git a/uhabits-android/src/main/res/drawable/ic_action_check.xml b/uhabits-android/src/main/res/drawable/ic_action_check.xml
index b33d0fd3d..69ba4eb39 100644
--- a/uhabits-android/src/main/res/drawable/ic_action_check.xml
+++ b/uhabits-android/src/main/res/drawable/ic_action_check.xml
@@ -1,3 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2013 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="32dp"
     android:height="32dp"
diff --git a/uhabits-android/src/main/res/drawable/ic_action_color_dark.xml b/uhabits-android/src/main/res/drawable/ic_action_color_dark.xml
index fd0860d2b..f5eebed9d 100644
--- a/uhabits-android/src/main/res/drawable/ic_action_color_dark.xml
+++ b/uhabits-android/src/main/res/drawable/ic_action_color_dark.xml
@@ -1,3 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2013 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="32dp"
     android:height="32dp"
diff --git a/uhabits-android/src/main/res/drawable/ic_action_color_light.xml b/uhabits-android/src/main/res/drawable/ic_action_color_light.xml
index d7690da08..46579a20c 100644
--- a/uhabits-android/src/main/res/drawable/ic_action_color_light.xml
+++ b/uhabits-android/src/main/res/drawable/ic_action_color_light.xml
@@ -1,3 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2013 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="32dp"
     android:height="32dp"
diff --git a/uhabits-android/src/main/res/drawable/ic_action_download_dark.xml b/uhabits-android/src/main/res/drawable/ic_action_download_dark.xml
index 6fe0bf45e..cd8c52cb0 100644
--- a/uhabits-android/src/main/res/drawable/ic_action_download_dark.xml
+++ b/uhabits-android/src/main/res/drawable/ic_action_download_dark.xml
@@ -1,3 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2013 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="32dp"
     android:height="32dp"
diff --git a/uhabits-android/src/main/res/drawable/ic_action_edit_dark.xml b/uhabits-android/src/main/res/drawable/ic_action_edit_dark.xml
index f0ad2c9e3..b96d7c500 100644
--- a/uhabits-android/src/main/res/drawable/ic_action_edit_dark.xml
+++ b/uhabits-android/src/main/res/drawable/ic_action_edit_dark.xml
@@ -1,3 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2013 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="32dp"
     android:height="32dp"