+/// \return the icon file name for the given action.
+QString iconName(FuncRequest const & f, bool unknown);
+
+
+/// \return the pixmap for the given path, name and extension.
+QPixmap getPixmap(QString const & path, QString const & name, QString const & ext);
+
+/// \return an icon for the given action.
+QIcon getIcon(FuncRequest const & f, bool unknown);
+
+GuiApplication * theGuiApp();
+