| overlay | The Overlay to remove. |
bool Returns true if Overlay was found and removed, false if Overlay was not present in OverlayCanvas.
Remove an Overlay from this canvas. Removed Overlays are disassociated from OverlayCanvas and the related EditorWindow, but not destroyed. This means you are able to move a single Overlay between multiple windows.
An Overlay may only belong to a single OverlayCanvas. To display an Overlay in multiple windows, you must instantiate an Overlay for each window.