Add some UI

ui/settings/SettingsMenu.gd

@@ -2,9 +2,15 @@ class_name SettingsMenu extends Control
 
 @export var tabs:TabBar
 @export var tabControls:Array[Control]
+@export var checkInvertX:CheckBox
+@export var checkInvertY:CheckBox
 
 func _ready() -> void:
   tabs.tab_changed.connect(onTabChanged)
+  checkInvertX.button_pressed = SETTINGS.invertCameraX
+  checkInvertY.button_pressed = SETTINGS.invertCameraY
+  checkInvertX.toggled.connect(func(v:bool): SETTINGS.invertCameraX = v)
+  checkInvertY.toggled.connect(func(v:bool): SETTINGS.invertCameraY = v)
   onTabChanged(tabs.current_tab)
 
 func _notification(what:int) -> void:
@@ -16,3 +22,10 @@ func onTabChanged(tabIndex:int) -> void:
     control.visible = false
   if tabIndex >= 0 and tabIndex < tabControls.size():
     tabControls[tabIndex].visible = true
+    _focusFirstIn(tabControls[tabIndex])
+
+func _focusFirstIn(container:Control) -> void:
+  for child in container.get_children():
+    if child is Control and child.focus_mode != Control.FOCUS_NONE:
+      child.grab_focus()
+      return