When using macOS and we select an application such as Finder or IntelliJ, the currently selected app is shown in bold in the top left corner of the desktop main menu.

I’m experiencing an issue with my JavaFX application flickering on macOS. This happens even with the most basic JavaFX “Hello World” application. When I run the application and click anywhere within the window, the application momentarily flickers to the background and then comes back to the foreground. This occurs in about a tenth of a second.