private static boolean hasLoaders() {
		return loadersMap != null && !loadersMap.isEmpty();
	}
Returns all fonts available in the graphics environment.
This first loads all families registered for lazy loading via {@link #registerFontFamilyLoader(String, Runnable)}
and then invokes {@link GraphicsEnvironment#getAllFonts()}.
flatlaf-core/src/main/java/com/formdev/flatlaf/util/FontUtils.java