         self.altitude.text = format(value: altitude)
 
         if let body = lander.physicsBody {
-            // TODO: Display directional arrows
+            // TODO: Display directional arrows instead of +/-
             horizontalSpeed.text = format(value: body.velocity.dx)
             verticalSpeed.text = format(value: body.velocity.dy)
         }


    private static let fontName = "Orbitron-Light"

    private static let fontSize: CGFloat = Constant.sceneSize.height / 32

    private var altitude: SKLabelNode!
    private var horizontalSpeed: SKLabelNode!

        let columnLayouts: [ColumnLayout] = [
            .right(width: 100), // label
            .right(width: 50),  // value
            .left(width: 20)    // optional additional indicator
        ]
        let rows: [[SKLabelNode]] = [
            [altitudeLabel,        altitude],
