angpysha

// TODO: setting window transforms (or mission control) flattens layers...
// TODO: Mask image vs path (layer)?

/// `NSVisualEffectView`:
///
/// A view that adds translucency and vibrancy effects to the views in your interface.
/// When you want views to be more prominent in your interface, place them in a
/// backdrop view. The backdrop view is partially transparent, allowing some of
/// the underlying content to show through. Typically, you use a backdrop view
/// to blur background content, instead of obscuring it completely. It can also