EinhugurMacOSBridge.NSVisualEffectMaterial Enum  Titlebar = 3 | The material for a window’s titlebar. |
| Selection = 4 | The material used to indicate a selection. |
| Menu = 5 | The material for menus. |
| Popover = 6 | The material for the background of popover windows. |
| Sidebar = 7 | The material for the background of window sidebars. |
| HeaderView = 10 | The material for in-line header or footer views.
This constant is only supported in macOS 10.14 and later. |
| Sheet = 11 | The material for the background of sheet windows.
This constant is only supported in macOS 10.14 and later. |
| WindowBackground = 12 | The material for the background of opaque windows.
This constant is only supported in macOS 10.14 and later. |
| HUDWindow = 13 | The material for the background of heads-up display (HUD) windows.
This constant is only supported in macOS 10.14 and later. |
| FullScreenUI = 15 | The material for the background of a full-screen modal interface.
This constant is only supported in macOS 10.14 and later. |
| ToolTip = 17 | The material for the background of a tool tip.
This constant is only supported in macOS 10.14 and later. |
| ContentBackground = 18 | The material for the background of opaque content.
This constant is only supported in macOS 10.14 and later. |
| UnderWindowBackground = 21 | The material to show under a window's background.
This constant is only supported in macOS 10.14 and later. |
| UnderPageBackground = 22 | The material for the area behind the pages of a document.
This constant is only supported in macOS 10.14 and later. |