A Boolean value that indicates whether the view displays an overlay that shows physics bodies that are visible in the scene.
Mac Catalyst 13.0+
When you enable this option, it shows the number of nodes currently in the scene's node tree.
You may achieve additional performance gain by actually removing nodes from the node tree manually which are off screen. For example, in the case of shouldCullNonVisibleNodes, there would be less nodes for SpriteKit to test every frame whether they're on screen.