Did much work on colors. It doesn't work and I guess

it's a GTK bug.
  Small change to Blit()
  Added GTK_NO_TYPE_CHECK when compiling without debug_flag
  Added more wxCHECK_XXX


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@915 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/checkbox.h

@@ -62,6 +62,7 @@ class wxCheckBox: public wxControl
     void SetLabel( const wxString& label );
     void SetFont( const wxFont &font );
     void Enable( bool enable );
+    void SetBackgroundColour( const wxColour &colour );
 };
 
 #endif // __GTKCHECKBOXH__