public static void loadFontFamily( String family ) {
		if( !hasLoaders() )
			return;

		Runnable loader = loadersMap.remove( family );
		if( loader != null )
			loader.run();

		if( loadersMap.isEmpty() )
			loadersMap = null;
	}
Loads a font family previously registered via {@link #registerFontFamilyLoader(String, Runnable)}.
If the family is already loaded or no loader is registered for that family, nothing happens.
flatlaf-core/src/main/java/com/formdev/flatlaf/util/FontUtils.java