add / switch to SPDX identifiers for vector drawables

app/src/main/res/drawable/btn_keyboard_key_holo_white.xml

@@ -1,17 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2013 The Android Open Source Project
+<!--
-
+    Copyright (C) 2013 The Android Open Source Project
-     Licensed under the Apache License, Version 2.0 (the "License");
+    SPDX-License-Identifier: Apache-2.0
-     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.
 -->
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">

app/src/main/res/drawable/btn_keyboard_key_lxx_base.xml

@@ -1,17 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2014 The Android Open Source Project
+<!--
-
+    Copyright (C) 2014 The Android Open Source Project
-     Licensed under the Apache License, Version 2.0 (the "License");
+    SPDX-License-Identifier: Apache-2.0
-     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.
 -->
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">

app/src/main/res/drawable/btn_keyboard_key_lxx_base_border.xml

@@ -1,17 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2013 The Android Open Source Project
+<!--
-
+    Copyright (C) 2013 The Android Open Source Project
-     Licensed under the Apache License, Version 2.0 (the "License");
+    SPDX-License-Identifier: Apache-2.0
-     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.
 -->
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">

app/src/main/res/drawable/btn_keyboard_key_popup_holo_white.xml

@@ -1,17 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2013 The Android Open Source Project
+<!--
-
+    Copyright (C) 2013 The Android Open Source Project
-     Licensed under the Apache License, Version 2.0 (the "License");
+    SPDX-License-Identifier: Apache-2.0
-     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.
 -->
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">

app/src/main/res/drawable/btn_keyboard_spacebar_holo_white.xml

@@ -1,17 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2013 The Android Open Source Project
+<!--
-
+    Copyright (C) 2013 The Android Open Source Project
-     Licensed under the Apache License, Version 2.0 (the "License");
+    SPDX-License-Identifier: Apache-2.0
-     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.
 -->
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">

app/src/main/res/drawable/btn_suggestion_holo_white.xml

@@ -1,21 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
-/*
+    Copyright (C) 2013 The Android Open Source Project
-**
+    SPDX-License-Identifier: Apache-2.0
-** Copyright 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.
-*/
 -->
 
 <selector

app/src/main/res/drawable/btn_suggestion_lxx_base.xml

@@ -1,21 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
-/*
+    Copyright (C) 2014 The Android Open Source Project
-**
+    SPDX-License-Identifier: Apache-2.0
-** Copyright 2014, 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.
-*/
 -->
 
 <selector

app/src/main/res/drawable/ic_arrow_left.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/ic_arrow_right.xml

@@ -1,4 +1,3 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
 <rotate xmlns:android="http://schemas.android.com/apk/res/android"
     android:fromDegrees="180"
     android:drawable="@drawable/ic_arrow_left">

app/src/main/res/drawable/ic_arrow_up.xml

@@ -1,4 +1,3 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
 <rotate xmlns:android="http://schemas.android.com/apk/res/android"
     android:fromDegrees="90"
     android:drawable="@drawable/ic_arrow_left">

app/src/main/res/drawable/ic_clipboard_pin_holo_dark.xml

@@ -1,3 +1,7 @@
+<!--
+    icon from pictogrammers.com
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/ic_clipboard_pin_lxx.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/ic_delete.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="32dp"
     android:height="32dp"

app/src/main/res/drawable/ic_divider.xml

@@ -1,4 +1,6 @@
-<?xml version="1.0" encoding="utf-8"?>
+<!--
+    SPDX-License-Identifier: CC0-1.0
+-->
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
     <item
         android:left="8dp"

app/src/main/res/drawable/ic_emoji_activities.xml

@@ -1,5 +1,8 @@
-<?xml version="1.0" encoding="utf-8"?>
+<!--
-<!--clipart available in Android Studio, Apache License 2.0-->
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
+
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="32dp"
     android:width="32dp"

app/src/main/res/drawable/ic_emoji_animals_nature.xml

@@ -1,5 +1,8 @@
-<?xml version="1.0" encoding="utf-8"?>
+<!--
-<!--clipart available in Android Studio, Apache License 2.0-->
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
+
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="32dp"
     android:width="32dp"

app/src/main/res/drawable/ic_emoji_emoticons.xml

@@ -1,5 +1,7 @@
-<?xml version="1.0" encoding="utf-8"?>
+<!--
-<!--Apache License 2.0-->
+    icon from pictogrammers.com
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="32dp"
     android:width="32dp"

app/src/main/res/drawable/ic_emoji_flags.xml

@@ -1,5 +1,7 @@
-<?xml version="1.0" encoding="utf-8"?>
+<!--
-<!--Apache License 2.0-->
+    icon from pictogrammers.com
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="32dp"
     android:width="32dp"

app/src/main/res/drawable/ic_emoji_food_drink.xml

@@ -1,5 +1,8 @@
-<?xml version="1.0" encoding="utf-8"?>
+<!--
-<!--clipart available in Android Studio, Apache License 2.0-->
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
+
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="32dp"
     android:width="32dp"

app/src/main/res/drawable/ic_emoji_objects.xml

@@ -1,5 +1,7 @@
-<?xml version="1.0" encoding="utf-8"?>
+<!--
-<!--clipart available in Android Studio, Apache License 2.0-->
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="32dp"
     android:width="32dp"

app/src/main/res/drawable/ic_emoji_people_body.xml

@@ -1,5 +1,7 @@
-<?xml version="1.0" encoding="utf-8"?>
+<!--
-<!--Apache License 2.0-->
+    icon from pictogrammers.com
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="32dp"
     android:width="32dp"

app/src/main/res/drawable/ic_emoji_recents.xml

@@ -1,5 +1,7 @@
-<?xml version="1.0" encoding="utf-8"?>
+<!--
-<!--Apache License 2.0-->
+    icon from pictogrammers.com
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="28dp"
     android:width="28dp"

app/src/main/res/drawable/ic_emoji_smileys_emotion.xml

@@ -1,5 +1,7 @@
-<?xml version="1.0" encoding="utf-8"?>
+<!--
-<!--Apache License 2.0-->
+    icon from pictogrammers.com
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="32dp"
     android:width="32dp"

app/src/main/res/drawable/ic_emoji_symbols.xml

@@ -1,5 +1,7 @@
-<?xml version="1.0" encoding="utf-8"?>
+<!--
-<!--Apache License 2.0-->
+    icon from pictogrammers.com
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="32dp"
     android:width="32dp"

app/src/main/res/drawable/ic_emoji_travel_places.xml

@@ -1,5 +1,7 @@
-<?xml version="1.0" encoding="utf-8"?>
+<!--
-<!--Apache License 2.0-->
+    icon from pictogrammers.com
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="32dp"
     android:width="32dp"

app/src/main/res/drawable/ic_plus.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="40dp"
     android:height="40dp"

app/src/main/res/drawable/ic_select_all.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/ic_settings_about_foreground.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="32dp"
     android:width="32dp"

app/src/main/res/drawable/ic_settings_advanced_foreground.xml

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <!--
     SPDX-FileCopyrightText: Material Design Authors / Google LLC
     SPDX-License-Identifier: Apache-2.0

app/src/main/res/drawable/ic_settings_appearance_foreground.xml

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <!--
     SPDX-FileCopyrightText: Material Design Authors / Google LLC
     SPDX-License-Identifier: Apache-2.0

app/src/main/res/drawable/ic_settings_correction_foreground.xml

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <!--
     SPDX-FileCopyrightText: Material Design Authors / Google LLC
     SPDX-License-Identifier: Apache-2.0

app/src/main/res/drawable/ic_settings_gesture_foreground.xml

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <!--
     SPDX-FileCopyrightText: Material Design Authors / Google LLC
     SPDX-License-Identifier: Apache-2.0

app/src/main/res/drawable/ic_settings_languages_foreground.xml

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <!--
     SPDX-FileCopyrightText: Material Design Authors / Google LLC
     SPDX-License-Identifier: Apache-2.0

app/src/main/res/drawable/ic_settings_preferences_foreground.xml

@@ -1,4 +1,7 @@
-<?xml version="1.0" encoding="utf-8"?>
+<!--
+    icon from pictogrammers.com
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="32dp"
     android:width="32dp"

app/src/main/res/drawable/ic_setup_finish.xml

@@ -1,21 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
-/*
+    Copyright (C) 2013 The Android Open Source Project
-**
+    SPDX-License-Identifier: Apache-2.0
-** Copyright 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.
-*/
 -->
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">

app/src/main/res/drawable/ic_setup_step1.xml

@@ -1,21 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
-/*
+    Copyright (C) 2013 The Android Open Source Project
-**
+    SPDX-License-Identifier: Apache-2.0
-** Copyright 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.
-*/
 -->
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">

app/src/main/res/drawable/ic_setup_step2.xml

@@ -1,21 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
-/*
+    Copyright (C) 2013 The Android Open Source Project
-**
+    SPDX-License-Identifier: Apache-2.0
-** Copyright 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.
-*/
 -->
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">

app/src/main/res/drawable/ic_setup_step3.xml

@@ -1,21 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
-/*
+    Copyright (C) 2013 The Android Open Source Project
-**
+    SPDX-License-Identifier: Apache-2.0
-** Copyright 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.
-*/
 -->
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">

app/src/main/res/drawable/keyboard_key_feedback_holo_white.xml

@@ -1,17 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2013 The Android Open Source Project
+<!--
-
+    Copyright (C) 2013 The Android Open Source Project
-     Licensed under the Apache License, Version 2.0 (the "License");
+    SPDX-License-Identifier: Apache-2.0
-     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.
 -->
 
 <selector

app/src/main/res/drawable/keyboard_key_feedback_lxx_light.xml

@@ -1,17 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2014 The Android Open Source Project
+<!--
-
+    Copyright (C) 2014 The Android Open Source Project
-     Licensed under the Apache License, Version 2.0 (the "License");
+    SPDX-License-Identifier: Apache-2.0
-     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.
 -->
 
 <selector

app/src/main/res/drawable/setup_step_action_background.xml

@@ -1,21 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
-/*
+    Copyright (C) 2013 The Android Open Source Project
-**
+    SPDX-License-Identifier: Apache-2.0
-** Copyright 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.
-*/
 -->
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">

app/src/main/res/drawable/sym_keyboard_delete_lxx.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/sym_keyboard_done_lxx.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/sym_keyboard_go_lxx.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/sym_keyboard_language_switch_lxx.xml

@@ -1,4 +1,8 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
+<!-- todo: remove / merge with ic_settings_languages -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/sym_keyboard_return_lxx.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/sym_keyboard_search_lxx.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/sym_keyboard_send_lxx.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/sym_keyboard_settings_lxx.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/sym_keyboard_shift_lxx.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/sym_keyboard_smiley_lxx.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/sym_keyboard_start_onehanded_holo.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="28dp"
     android:width="28dp"

app/src/main/res/drawable/sym_keyboard_start_onehanded_lxx.xml

@@ -1,4 +1,8 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
+<!-- todo: remove / merge with sym_keyboard_start_onehanded_holo -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="20dp"
     android:width="20dp"

app/src/main/res/drawable/sym_keyboard_stop_onehanded_holo.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="32dp"
     android:width="32dp"

app/src/main/res/drawable/sym_keyboard_stop_onehanded_lxx.xml

@@ -1,4 +1,8 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
+<!-- todo: remove / merge with sym_keyboard_stop_onehanded_holo -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/sym_keyboard_switch_onehanded_holo.xml

@@ -1,4 +1,8 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
+<!-- todo: remove / merge with ic_arrow_left -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="32dp"
     android:width="32dp"

app/src/main/res/drawable/sym_keyboard_tab_lxx.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/sym_keyboard_voice_lxx.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"

app/src/main/res/drawable/sym_keyboard_voice_off_lxx.xml

@@ -1,4 +1,7 @@
-<!-- clipart available in Android Studio, Apache License 2.0 -->
+<!--
+    icon available in Android Studio
+    SPDX-License-Identifier: Apache-2.0
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:height="24dp"
     android:width="24dp"