diff --git a/nw/constants/constants.py b/nw/constants/constants.py
index 5b961e10..10c44bac 100644
--- a/nw/constants/constants.py
+++ b/nw/constants/constants.py
@@ -49,7 +49,6 @@ class nwConst():
 class nwLists():
     """Lists used for grouping various other constants.
     """
-
     # Regular user-accessible item types
     REG_TYPES = {nwItemType.ROOT, nwItemType.FOLDER, nwItemType.FILE}
 
diff --git a/nw/gui/noveltree.py b/nw/gui/noveltree.py
index 1174bbfe..d8c23b04 100644
--- a/nw/gui/noveltree.py
+++ b/nw/gui/noveltree.py
@@ -1,28 +1,27 @@
 # -*- coding: utf-8 -*-
-"""novelWriter GUI Novel Tree
+"""
+novelWriter – GUI Novel Tree
+============================
+GUI classe for the main window novel tree
 
- novelWriter – GUI Novel Tree
-==============================
- Class holding the project's novel files tree view
+File History:
+Created: 2020-12-20 [1.1a0]
 
- File History:
- Created: 2020-12-20 [1.1a0]
+This file is a part of novelWriter
+Copyright 2018–2020, Veronica Berglyd Olsen
 
- This file is a part of novelWriter
- Copyright 2018–2020, Veronica Berglyd Olsen
+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 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.
 
- 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 <https://www.gnu.org/licenses/>.
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 
 import nw
diff --git a/tests/conftest.py b/tests/conftest.py
index 670085d5..57956aff 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,5 +1,23 @@
 # -*- coding: utf-8 -*-
-"""novelWriter Test Config
+"""
+novelWriter – Test Suite Configuration
+======================================
+
+This file is a part of novelWriter
+Copyright 2018–2021, Veronica Berglyd Olsen
+
+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 <https://www.gnu.org/licenses/>.
 """
 
 import sys
diff --git a/tests/dummy.py b/tests/dummy.py
index 9a74bb61..72ac5e21 100644
--- a/tests/dummy.py
+++ b/tests/dummy.py
@@ -1,5 +1,23 @@
 # -*- coding: utf-8 -*-
-"""novelWriter Test Dummy GUI Classes
+"""
+novelWriter – Test Suite Dummy Classes
+======================================
+
+This file is a part of novelWriter
+Copyright 2018–2021, Veronica Berglyd Olsen
+
+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 <https://www.gnu.org/licenses/>.
 """
 
 # =========================================================================== #
diff --git a/tests/tools.py b/tests/tools.py
index d55a1e4e..1b688f1e 100644
--- a/tests/tools.py
+++ b/tests/tools.py
@@ -1,5 +1,23 @@
 # -*- coding: utf-8 -*-
-"""novelWriter Test Tools
+"""
+novelWriter – Test Suite Tools
+==============================
+
+This file is a part of novelWriter
+Copyright 2018–2021, Veronica Berglyd Olsen
+
+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 <https://www.gnu.org/licenses/>.
 """
 
 import os