Focus fixes and sound

music_button.gd

@@ -0,0 +1,16 @@
+extends TextureButton
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	pass
+
+
+func _on_toggled(toggled_on: bool) -> void:
+	toggled_on = !toggled_on
+	%Player2D.get_node("BackgroundMusic").playing = !%Player2D.get_node("BackgroundMusic").playing