Added pause and mute.

Improved fonts and font scaling
Added level editor

LoadPanel.gd

@@ -0,0 +1,42 @@
+extends PanelContainer
+
+signal load_file(filename : String)
+
+func update_level_list() -> void:
+	var vb = $VBoxContainer/ScrollContainer/VBoxContainer
+	
+	for k in vb.get_children():
+		vb.remove_child(k)
+		k.queue_free()
+
+	for file in DirAccess.get_files_at("res://Levels"):
+		if file.ends_with(".json"):
+			var data = JSON.parse_string(FileAccess.get_file_as_string("res://Levels/%s" % file))
+			var b = Button.new()
+			b.theme = load("res://MainTheme.tres")
+			b.text = data.name
+			b.size_flags_horizontal = Control.SIZE_EXPAND_FILL
+			b.pressed.connect(_on_load_file_pressed.bind(b))
+			b.set_meta("filename", "res://Levels/%s" % file)
+			vb.add_child(b)
+	for file in DirAccess.get_files_at("user://Levels"):
+		if file.ends_with(".json"):
+			var data = JSON.parse_string(FileAccess.get_file_as_string("user://Levels/%s" % file))
+			var b = Button.new()
+			b.theme = load("res://MainTheme.tres")
+			b.text = data.name
+			b.size_flags_horizontal = Control.SIZE_EXPAND_FILL
+			b.pressed.connect(_on_load_file_pressed.bind(b))
+			b.set_meta("filename", "user://Levels/%s" % file)
+			vb.add_child(b)
+
+func show_panel() -> void:
+	update_level_list()
+	visible = true
+
+func _on_cancel_pressed() -> void:
+	visible = false
+
+func _on_load_file_pressed(node):
+	load_file.emit(node.get_meta("filename"))
+	visible = false