diff --git a/icons/Floppy.png b/icons/Floppy.png
old mode 100755
new mode 100644
index f351b43..f351b43
Binary files a/icons/Floppy.png and b/icons/Floppy.png differ
diff --git a/icons/annotation.png b/icons/annotation.png
old mode 100755
new mode 100644
index 5621d67..5621d67
Binary files a/icons/annotation.png and b/icons/annotation.png differ
diff --git a/icons/file_export.png b/icons/file_export.png
old mode 100755
new mode 100644
index c519c44..c519c44
Binary files a/icons/file_export.png and b/icons/file_export.png differ
diff --git a/icons/file_from_internet.png b/icons/file_from_internet.png
old mode 100755
new mode 100644
index fa34951..fa34951
Binary files a/icons/file_from_internet.png and b/icons/file_from_internet.png differ
diff --git a/icons/file_import.png b/icons/file_import.png
old mode 100755
new mode 100644
index 989c851..989c851
Binary files a/icons/file_import.png and b/icons/file_import.png differ
diff --git a/icons/file_save.png b/icons/file_save.png
old mode 100755
new mode 100644
index 3b23e9f..3b23e9f
Binary files a/icons/file_save.png and b/icons/file_save.png differ
diff --git a/icons/invesalius.ico b/icons/invesalius.ico
old mode 100755
new mode 100644
index 427bf10..427bf10
Binary files a/icons/invesalius.ico and b/icons/invesalius.ico differ
diff --git a/icons/measure_line.png b/icons/measure_line.png
old mode 100755
new mode 100644
index f814e0f..f814e0f
Binary files a/icons/measure_line.png and b/icons/measure_line.png differ
diff --git a/icons/tool_photo.png b/icons/tool_photo.png
old mode 100755
new mode 100644
index 9760937..9760937
Binary files a/icons/tool_photo.png and b/icons/tool_photo.png differ
diff --git a/icons/tool_zoom.png b/icons/tool_zoom.png
old mode 100755
new mode 100644
index 56b6088..56b6088
Binary files a/icons/tool_zoom.png and b/icons/tool_zoom.png differ
diff --git a/invesalius/control.py b/invesalius/control.py
old mode 100755
new mode 100644
index d552f3e..d552f3e
--- a/invesalius/control.py
+++ b/invesalius/control.py
diff --git a/invesalius/data/editor.py b/invesalius/data/editor.py
old mode 100755
new mode 100644
index bd73121..bd73121
--- a/invesalius/data/editor.py
+++ b/invesalius/data/editor.py
diff --git a/invesalius/data/volume.py b/invesalius/data/volume.py
old mode 100755
new mode 100644
index 9935faf..9935faf
--- a/invesalius/data/volume.py
+++ b/invesalius/data/volume.py
diff --git a/invesalius/data/volume_widgets.py b/invesalius/data/volume_widgets.py
old mode 100755
new mode 100644
index c1fd73a..c1fd73a
--- a/invesalius/data/volume_widgets.py
+++ b/invesalius/data/volume_widgets.py
diff --git a/invesalius/gui/default_tasks.py b/invesalius/gui/default_tasks.py
old mode 100755
new mode 100644
index 9c38ba4..9c38ba4
--- a/invesalius/gui/default_tasks.py
+++ b/invesalius/gui/default_tasks.py
diff --git a/invesalius/gui/default_viewers.py b/invesalius/gui/default_viewers.py
old mode 100755
new mode 100644
index 9d8a3ef..9d8a3ef
--- a/invesalius/gui/default_viewers.py
+++ b/invesalius/gui/default_viewers.py
diff --git a/invesalius/gui/dicom_preview_panel.py b/invesalius/gui/dicom_preview_panel.py
old mode 100755
new mode 100644
index ca1702e..ca1702e
--- a/invesalius/gui/dicom_preview_panel.py
+++ b/invesalius/gui/dicom_preview_panel.py
diff --git a/invesalius/gui/frame.py b/invesalius/gui/frame.py
old mode 100755
new mode 100644
index 6363156..6363156
--- a/invesalius/gui/frame.py
+++ b/invesalius/gui/frame.py
diff --git a/invesalius/project.py b/invesalius/project.py
old mode 100755
new mode 100644
index ad51510..ad51510
--- a/invesalius/project.py
+++ b/invesalius/project.py
diff --git a/invesalius/utils.py b/invesalius/utils.py
old mode 100755
new mode 100644
index eba387b..eba387b
--- a/invesalius/utils.py
+++ b/invesalius/utils.py
--
libgit2 0.21.2