public static void setupShowOnHover(@Nonnull Node node) {
		double hiddenOpacity = 0.1;
		DoubleProperty opacity = node.opacityProperty();
		opacity.set(hiddenOpacity);

		FadeTransition show = new FadeTransition(Duration.millis(250), node);
		show.setToValue(1.0);

		FadeTransition hide = new FadeTransition(Duration.millis(250), node);
		hide.setToValue(hiddenOpacity);

		node.setOnMouseEntered(e -> {
			show.setFromValue(opacity.doubleValue());
			show.play();
		});
		node.setOnMouseExited(e -> {
			hide.setFromValue(opacity.doubleValue());
			hide.play();
		});
	}
Registers mouse-enter/exit events which transition the opacity of the given node.

@param node
		Not to install show-on-hover.
recaf-ui/src/main/java/software/coley/recaf/util/Animations.java