I32 enr_GetThemeName (const enr_Chart* chart, I32 idx, CHAR** name)
{
	enr_App*     app    = chart  ? chart->app : NULL;
	JCLArray*    themes = app    ? &app->themes : NULL;
	ChartTheme** theme  = themes ? (ChartTheme**) ArrayGet (themes, idx) : NULL;

	if (theme == NULL)
	{
		return ENR_ERR_BADARG;
	}

	*name = (*theme)->name;

	return ENR_NOERR;
}