Where is logback encoder pattern documentation

I've gone through all the documentation of logback and I can't find anywhere the documentation to configure the encoder's pattern when logging, such as:

<encoder>
  <pattern>%d{HH:mm:ss.SSS} %-4relative %-5level %logger{35} - %msg%n</pattern>
</encoder>

I would like a table (like the one that log4j has) explaining the different options to configure the pattern.

Where is the documentation of the pattern? Maybe they are defined in another project?


Probably you should take a look at Chapter 6: Layouts...