static boolean isAWTPeer( Component c ) {
		// on macOS, Swing components are used for AWT components
		if( SystemInfo.isMacOS )
			return c.getClass().getName().startsWith( "sun.lwawt.LW" );
		return false;
	}
Returns whether the given component is the permanent focus owner and
is in the active window or in a popup window owned by the active window.
Used to paint focus indicators.
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatUIUtils.java