How to log FATAL (or any custom log level) with SLF4J and Log4j2

Question

I have those specific requirements :

• Need to be able to log in FATAL level
• Need to use SLF4J<

Answer 1

I know the question is for log4j. I found this page when looking in relation to logback. Here's what sl4j recommends: https://www.slf4j.org/faq.html#fatal.