How come the undecorated window is impossible to get a result for all side resizing that is smooth and not flickering/trembling. I tried too much stuff trying to fix it, such as using Mouse Events and calculating the movements, but only the right and bottom side seems to get decent. I think it's an easy bug present in JavaFX that can be fixed on future updates, should i create a decent report about it ? since i need to use undecorated window…