Replace AdwBanner with AdwToast
The toast is a modern way to do notifications without needing to use banners. One downside of the banners is they cause the view to resize when the banner is displayed.
Unfortunately there is no tooltip if the text gets ellipsized because the window size is too small. It can also be slightly hard to read when displayed over top of the chess pieces.
The previous banner:
Edited by Michael Catanzaro