Index: src/ch/Theme Helpers.h
===================================================================
diff -u -rc435ab507c8b8280264188b49e9ada56d46c0261 -r8068e0c351055554340ac9755d1bc846893bf2b8
--- src/ch/Theme Helpers.h	(.../Theme Helpers.h)	(revision c435ab507c8b8280264188b49e9ada56d46c0261)
+++ src/ch/Theme Helpers.h	(.../Theme Helpers.h)	(revision 8068e0c351055554340ac9755d1bc846893bf2b8)
@@ -40,7 +40,7 @@
 	HTHEME OpenThemeData(HWND hwnd, LPCWSTR pszClassList);
 	HRESULT CloseThemeData(HTHEME hTheme);
 
-	bool IsThemeSupported() { return m_hThemesDll != NULL; };
+	bool IsThemeSupported() { return m_hThemesDll != nullptr; };
 	BOOL IsAppThemed();
 
 	HRESULT DrawThemeEdge(HTHEME hTheme, HDC hdc, int iPartId, int iStateId, const RECT* pDestRect, UINT uEdge, UINT uFlags, RECT* pContentRect);