There’s a flag that Mac application developers can set indicating whether their application can handle the extra screen space when in full screen mode. There ar

There’s a flag that Mac application developers can set indicating whether their application can handle the extra screen space when in full screen mode. There are three modes, on off and null (the default). On = application uses that space however the developer chooses, off = black bar, null = user-configurable, with black bar by default. Sadly I’m on mobile and can’t find the Apple’s developer documentation for the flag, I saw it on HN the other day.