_layer_book=new Book();
#define INCLUDE_LAYER(class) synfig::Layer::book()[synfig::String(class::name__)]=BookEntry(class::create,class::name__,dgettext("synfig",class::local_name__),dgettext("synfig",class::category__),class::cvs_id__,class::version__)
-#define LAYER_ALIAS(class,alias) synfig::Layer::book()[synfig::String(alias)]=synfig::Layer::BookEntry(class::create,alias,alias,_("Do Not Use"),class::cvs_id__,class::version__);
+#define LAYER_ALIAS(class,alias) synfig::Layer::book()[synfig::String(alias)]=synfig::Layer::BookEntry(class::create,alias,alias,CATEGORY_DO_NOT_USE,class::cvs_id__,class::version__);
INCLUDE_LAYER(Layer_SolidColor); LAYER_ALIAS(Layer_SolidColor, "solid_color");
INCLUDE_LAYER(Layer_PasteCanvas); LAYER_ALIAS(Layer_PasteCanvas, "paste_canvas");