SunsetHigh.InGameMenu.goBack C# (CSharp) Method

        public static void goBack()
        {
            if (!menuOpen)
                return;
            nullCheck();
            Panel popped = panelStack.Pop();
            popped.onExit();
            PanelGroupSorter.panelOut(popped);
            if (panelStack.Count == 0)
            {
                close();
            }
            else
            {
                activePanel = panelStack.Peek();
                activePanel.onRefocus();
                menuArrow.moveToActivePanel(activePanel);
            }
        }