New screens, new hud, new intro menu, some UI element changes

debug_draw.gd

@@ -387,12 +387,15 @@ func _reconcile(delta: float) -> void:
 	if scene != null:
 		_collect(scene, col, hit, bone, anim, wanted)
 
-	# Drop overlays whose shape is gone or no longer wanted.
+	# Drop overlays whose shape is gone or no longer wanted. The overlay is a child of
+	# the collision shape, so it's freed with it — hold it as Variant, since assigning a
+	# freed instance to any *typed* var (even Object) throws before is_instance_valid()
+	# can filter it out.
 	for id: int in _overlays.keys():
-		var mi: MeshInstance3D = _overlays[id]
+		var mi: Variant = _overlays[id]
 		if not wanted.has(id) or not is_instance_valid(mi):
 			if is_instance_valid(mi):
-				mi.queue_free()
+				(mi as Node).queue_free()
 			_overlays.erase(id)
 	# Add overlays for newly seen shapes.
 	for id: int in wanted:
@@ -442,9 +445,9 @@ func _attach(cs: CollisionShape3D, is_area: bool) -> MeshInstance3D:
 
 func _clear_overlays() -> void:
 	for id: int in _overlays:
-		var mi: MeshInstance3D = _overlays[id]
+		var mi: Variant = _overlays[id]
 		if is_instance_valid(mi):
-			mi.queue_free()
+			(mi as Node).queue_free()
 	_overlays.clear()