i installed Oracle Java 10 on my Linux Mint 19 recently, and right off the bat, I was a disappointing experience. I did this on a whim actually. Right of the bat, i got errors about themes class, and memory leaks. Regrettably i did not do a screenshot but i did send it as a Pastebin to one of the developers,....
here.
He suggested it may be a Java problem. After agreeing with him, i uninstalled Java 10 and installed Oracle Java 8. I used the instructions from this
article , which turned out to easier than i thought.
to remove java 10 i opened a terminal window and typed
sudo apt-get remove oracle-java10-jdkI also used
sudo apt-get purge oracle-java-10-installer to remove all traces of Java 10 as well as any configuration files.
Now my system is back up and running as should. I am also able to change LGM's theme as often as i want. Running my projects without any memory leaks is also non-existent.
On the subject of changing LGM's look, you can check out
this post on how to get it done. suffice to say there are some really cool ones to use. i ended up using the Synthetica Blue Ice Look And Feel for my 19" widescreen monitor.