diff --git a/src/ui/Avatar.cpp b/src/ui/Avatar.cpp
index 0d1bb924..53e72618 100644
--- a/src/ui/Avatar.cpp
+++ b/src/ui/Avatar.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include <QPainter>
#include <QPainterPath>
#include <QSettings>
diff --git a/src/ui/Avatar.h b/src/ui/Avatar.h
index 229a980d..bbf05be3 100644
--- a/src/ui/Avatar.h
+++ b/src/ui/Avatar.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QImage>
diff --git a/src/ui/Badge.cpp b/src/ui/Badge.cpp
index 6701f9b7..66210d06 100644
--- a/src/ui/Badge.cpp
+++ b/src/ui/Badge.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include <QPainter>
#include "Badge.h"
diff --git a/src/ui/Badge.h b/src/ui/Badge.h
index 748b56fd..98e16873 100644
--- a/src/ui/Badge.h
+++ b/src/ui/Badge.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QColor>
diff --git a/src/ui/DropShadow.cpp b/src/ui/DropShadow.cpp
index d437975c..a413e3f7 100644
--- a/src/ui/DropShadow.cpp
+++ b/src/ui/DropShadow.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include "DropShadow.h"
#include <QLinearGradient>
diff --git a/src/ui/DropShadow.h b/src/ui/DropShadow.h
index 6997e1a0..4ace4731 100644
--- a/src/ui/DropShadow.h
+++ b/src/ui/DropShadow.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QColor>
diff --git a/src/ui/FlatButton.cpp b/src/ui/FlatButton.cpp
index 6660c58d..c036401b 100644
--- a/src/ui/FlatButton.cpp
+++ b/src/ui/FlatButton.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include <QEventTransition>
#include <QFontDatabase>
#include <QIcon>
diff --git a/src/ui/FlatButton.h b/src/ui/FlatButton.h
index 3749a0d9..c79945b7 100644
--- a/src/ui/FlatButton.h
+++ b/src/ui/FlatButton.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QPushButton>
diff --git a/src/ui/FloatingButton.cpp b/src/ui/FloatingButton.cpp
index f3a09ccd..95b6ae1d 100644
--- a/src/ui/FloatingButton.cpp
+++ b/src/ui/FloatingButton.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include <QPainter>
#include <QPainterPath>
diff --git a/src/ui/FloatingButton.h b/src/ui/FloatingButton.h
index 91e99ebb..b59b3854 100644
--- a/src/ui/FloatingButton.h
+++ b/src/ui/FloatingButton.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include "RaisedButton.h"
diff --git a/src/ui/InfoMessage.cpp b/src/ui/InfoMessage.cpp
index 0b69564d..fb3b306a 100644
--- a/src/ui/InfoMessage.cpp
+++ b/src/ui/InfoMessage.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include "InfoMessage.h"
#include "Config.h"
diff --git a/src/ui/InfoMessage.h b/src/ui/InfoMessage.h
index f8f457e3..cc0c57dc 100644
--- a/src/ui/InfoMessage.h
+++ b/src/ui/InfoMessage.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QColor>
diff --git a/src/ui/Label.cpp b/src/ui/Label.cpp
index 8bd8c54e..2e8f8e1d 100644
--- a/src/ui/Label.cpp
+++ b/src/ui/Label.cpp
@@ -1,19 +1,7 @@
-/*
- * nheko Copyright (C) 2017 Konstantinos Sideris <siderisk@auth.gr>
- *
- * This program 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.
- *
- * This program 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/>.
- */
+// SPDX-FileCopyrightText: 2017 Konstantinos Sideris <siderisk@auth.gr>
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
#include "Label.h"
#include <QMouseEvent>
diff --git a/src/ui/Label.h b/src/ui/Label.h
index 09cf27d7..a3eb511b 100644
--- a/src/ui/Label.h
+++ b/src/ui/Label.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QLabel>
diff --git a/src/ui/LoadingIndicator.cpp b/src/ui/LoadingIndicator.cpp
index d2b1240d..fb3c761c 100644
--- a/src/ui/LoadingIndicator.cpp
+++ b/src/ui/LoadingIndicator.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include "LoadingIndicator.h"
#include <QPaintEvent>
diff --git a/src/ui/LoadingIndicator.h b/src/ui/LoadingIndicator.h
index 678ef611..ba56b449 100644
--- a/src/ui/LoadingIndicator.h
+++ b/src/ui/LoadingIndicator.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QColor>
diff --git a/src/ui/Menu.h b/src/ui/Menu.h
index d0427851..fd2946dd 100644
--- a/src/ui/Menu.h
+++ b/src/ui/Menu.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QMenu>
diff --git a/src/ui/NhekoCursorShape.cpp b/src/ui/NhekoCursorShape.cpp
index 06b0a321..b36eedbd 100644
--- a/src/ui/NhekoCursorShape.cpp
+++ b/src/ui/NhekoCursorShape.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include "NhekoCursorShape.h"
#include <QCursor>
diff --git a/src/ui/NhekoCursorShape.h b/src/ui/NhekoCursorShape.h
index 2eab5e42..6f6a2b82 100644
--- a/src/ui/NhekoCursorShape.h
+++ b/src/ui/NhekoCursorShape.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
// see
diff --git a/src/ui/NhekoDropArea.cpp b/src/ui/NhekoDropArea.cpp
index 14b71524..54f48d3c 100644
--- a/src/ui/NhekoDropArea.cpp
+++ b/src/ui/NhekoDropArea.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include "NhekoDropArea.h"
#include <QMimeData>
diff --git a/src/ui/NhekoDropArea.h b/src/ui/NhekoDropArea.h
index b03620f2..9fbf1737 100644
--- a/src/ui/NhekoDropArea.h
+++ b/src/ui/NhekoDropArea.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include <QQuickItem>
class NhekoDropArea : public QQuickItem
diff --git a/src/ui/OverlayModal.cpp b/src/ui/OverlayModal.cpp
index abd1827a..f5f28732 100644
--- a/src/ui/OverlayModal.cpp
+++ b/src/ui/OverlayModal.cpp
@@ -1,19 +1,7 @@
-/*
- * nheko Copyright (C) 2017 Konstantinos Sideris <siderisk@auth.gr>
- *
- * This program 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.
- *
- * This program 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/>.
- */
+// SPDX-FileCopyrightText: 2017 Konstantinos Sideris <siderisk@auth.gr>
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
#include <QPainter>
#include <QVBoxLayout>
diff --git a/src/ui/OverlayModal.h b/src/ui/OverlayModal.h
index e1fe8ec0..005614fa 100644
--- a/src/ui/OverlayModal.h
+++ b/src/ui/OverlayModal.h
@@ -1,19 +1,7 @@
-/*
- * nheko Copyright (C) 2017 Konstantinos Sideris <siderisk@auth.gr>
- *
- * This program 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.
- *
- * This program 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/>.
- */
+// SPDX-FileCopyrightText: 2017 Konstantinos Sideris <siderisk@auth.gr>
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
diff --git a/src/ui/OverlayWidget.cpp b/src/ui/OverlayWidget.cpp
index a32d86b6..c8c95581 100644
--- a/src/ui/OverlayWidget.cpp
+++ b/src/ui/OverlayWidget.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include "OverlayWidget.h"
#include <QPainter>
diff --git a/src/ui/OverlayWidget.h b/src/ui/OverlayWidget.h
index ed3ef52d..05bb8696 100644
--- a/src/ui/OverlayWidget.h
+++ b/src/ui/OverlayWidget.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QEvent>
diff --git a/src/ui/Painter.h b/src/ui/Painter.h
index c69dca95..3353f0c7 100644
--- a/src/ui/Painter.h
+++ b/src/ui/Painter.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QFontMetrics>
diff --git a/src/ui/RaisedButton.cpp b/src/ui/RaisedButton.cpp
index c519f84f..563cb8e5 100644
--- a/src/ui/RaisedButton.cpp
+++ b/src/ui/RaisedButton.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include <QEventTransition>
#include <QPropertyAnimation>
diff --git a/src/ui/RaisedButton.h b/src/ui/RaisedButton.h
index 47ef1acd..dcb579bb 100644
--- a/src/ui/RaisedButton.h
+++ b/src/ui/RaisedButton.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QGraphicsDropShadowEffect>
diff --git a/src/ui/Ripple.cpp b/src/ui/Ripple.cpp
index ef8a62dd..f0455f0b 100644
--- a/src/ui/Ripple.cpp
+++ b/src/ui/Ripple.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include "Ripple.h"
#include "RippleOverlay.h"
diff --git a/src/ui/Ripple.h b/src/ui/Ripple.h
index 3701fb6c..2ad42b9e 100644
--- a/src/ui/Ripple.h
+++ b/src/ui/Ripple.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QBrush>
diff --git a/src/ui/RippleOverlay.cpp b/src/ui/RippleOverlay.cpp
index 20e98c0f..00915deb 100644
--- a/src/ui/RippleOverlay.cpp
+++ b/src/ui/RippleOverlay.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include <QPainter>
#include "Ripple.h"
diff --git a/src/ui/RippleOverlay.h b/src/ui/RippleOverlay.h
index 5d12aff7..7ae3e4f1 100644
--- a/src/ui/RippleOverlay.h
+++ b/src/ui/RippleOverlay.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QPainterPath>
diff --git a/src/ui/RoomSettings.cpp b/src/ui/RoomSettings.cpp
index a264c78b..cb82cc4e 100644
--- a/src/ui/RoomSettings.cpp
+++ b/src/ui/RoomSettings.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include "RoomSettings.h"
#include <QApplication>
diff --git a/src/ui/RoomSettings.h b/src/ui/RoomSettings.h
index 25c6e588..367f3111 100644
--- a/src/ui/RoomSettings.h
+++ b/src/ui/RoomSettings.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QLabel>
diff --git a/src/ui/SnackBar.cpp b/src/ui/SnackBar.cpp
index 51a0ff38..03609802 100644
--- a/src/ui/SnackBar.cpp
+++ b/src/ui/SnackBar.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include <QPainter>
#include <tweeny.h>
diff --git a/src/ui/SnackBar.h b/src/ui/SnackBar.h
index 15cbf626..5459159e 100644
--- a/src/ui/SnackBar.h
+++ b/src/ui/SnackBar.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QCoreApplication>
diff --git a/src/ui/TextField.cpp b/src/ui/TextField.cpp
index 055fe73b..7d015e89 100644
--- a/src/ui/TextField.cpp
+++ b/src/ui/TextField.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include "TextField.h"
#include <QCoreApplication>
diff --git a/src/ui/TextField.h b/src/ui/TextField.h
index 01fd5782..ac4c396e 100644
--- a/src/ui/TextField.h
+++ b/src/ui/TextField.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QColor>
diff --git a/src/ui/TextLabel.cpp b/src/ui/TextLabel.cpp
index 8ea2bb54..3568e15c 100644
--- a/src/ui/TextLabel.cpp
+++ b/src/ui/TextLabel.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include "ui/TextLabel.h"
#include <QAbstractTextDocumentLayout>
diff --git a/src/ui/TextLabel.h b/src/ui/TextLabel.h
index 56778dcc..bc095823 100644
--- a/src/ui/TextLabel.h
+++ b/src/ui/TextLabel.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QSize>
diff --git a/src/ui/Theme.cpp b/src/ui/Theme.cpp
index 7209864a..4341bd63 100644
--- a/src/ui/Theme.cpp
+++ b/src/ui/Theme.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include <QDebug>
#include "Theme.h"
diff --git a/src/ui/Theme.h b/src/ui/Theme.h
index 34971280..3243c076 100644
--- a/src/ui/Theme.h
+++ b/src/ui/Theme.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QColor>
diff --git a/src/ui/ThemeManager.cpp b/src/ui/ThemeManager.cpp
index 7baed1f3..834f5083 100644
--- a/src/ui/ThemeManager.cpp
+++ b/src/ui/ThemeManager.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include <QFontDatabase>
#include "ThemeManager.h"
diff --git a/src/ui/ThemeManager.h b/src/ui/ThemeManager.h
index d35ff754..f2099730 100644
--- a/src/ui/ThemeManager.h
+++ b/src/ui/ThemeManager.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QCommonStyle>
diff --git a/src/ui/ToggleButton.cpp b/src/ui/ToggleButton.cpp
index 40ea82ac..33bf8f92 100644
--- a/src/ui/ToggleButton.cpp
+++ b/src/ui/ToggleButton.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include <QColor>
#include <QCoreApplication>
#include <QEvent>
diff --git a/src/ui/ToggleButton.h b/src/ui/ToggleButton.h
index 14c3450b..2413b086 100644
--- a/src/ui/ToggleButton.h
+++ b/src/ui/ToggleButton.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QAbstractButton>
diff --git a/src/ui/UserProfile.cpp b/src/ui/UserProfile.cpp
index 77f6ced5..dfb0c926 100644
--- a/src/ui/UserProfile.cpp
+++ b/src/ui/UserProfile.cpp
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#include <QFileDialog>
#include <QImageReader>
#include <QMimeDatabase>
diff --git a/src/ui/UserProfile.h b/src/ui/UserProfile.h
index ffc5dcae..7c9c7495 100644
--- a/src/ui/UserProfile.h
+++ b/src/ui/UserProfile.h
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2021 Nheko Contributors
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
#pragma once
#include <QAbstractListModel>
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