#pragma once for our headers plus drive-by formatting

rtgui/colortoning.h

@@ -1,18 +1,19 @@
 /*
  *  This file is part of RawTherapee.
  */
-#ifndef _COLORTONING_H_
-#define _COLORTONING_H_
+#pragma once
 
 #include <gtkmm.h>
+
 #include "adjuster.h"
-#include "toolpanel.h"
-#include "guiutils.h"
+#include "colorprovider.h"
 #include "curveeditor.h"
 #include "curveeditorgroup.h"
-#include "thresholdadjuster.h"
-#include "colorprovider.h"
+#include "guiutils.h"
 #include "labgrid.h"
+#include "thresholdadjuster.h"
+#include "toolpanel.h"
+
 #include "../rtengine/procparams.h"
 
 class ColorToning final :
@@ -166,5 +167,3 @@ private:
 
     IdleRegister idle_register;
 };
-
-#endif