Hi
Why does Economy2.png contain a large empty space under Oil Resource?
I’ll put JNDT XML script into a JAR and improve the documentation for Gradle users as soon as possible. I advise you to test your game with OpenJDK as it’s what most GNU Linux users use but nowadays there isn’t a big difference with Oracle Java.
Note that you can modify the files of the JRE before passing them to JNDT, it’s a good way of testing this workaround and ensuring that your game is correctly packaged.