Positioning a window doesn't seem to work, is it a bug?

[beaugunderson]

I'm adapting the SnowScape example and no matter what I pass for the frame the window origin does not change (it's always slightly above the center vertically and centered horizontally).

I think the example works because macOS pushes the window around to keep it on the screen, which results in it taking up the whole area when it's the same size as the MainScreen frame.

	frame := foundation.Rect{
		Origin: foundation.Point{X: 0, Y: 0},
		Size:   foundation.Size{Width: 200, Height: 200},
	}

	w := appkit.NewWindowWithContentRectStyleMaskBackingDefer(frame, appkit.ClosableWindowMask|appkit.BorderlessWindowMask, appkit.BackingStoreBuffered, false)

Is this a bug?

Edit: This was 100% self-inflicted, the example calls w.Center() further down. 🙃