Hey All! I’m trying to configure a custom appender, and I need to make appender class customisable via properties. In `ch.qos.logback.core.joran.action.AppenderAction` I see, that `className` is not substituted. It’s strange, cause just a few lines below we use `name` attribute to define appenderName, and we substitute it. So, questions are: 1. Why are we doing it this way? 2. What else can I do, to achieve my goal of having appender class externalised? Can you help, please? Context, I’m writing a library, that should do most of logging configurations automatically, and I would like users of the library to be able to extend some behaviour that is only available if we let them have custom appenders. `<appender class=“${myClass}" name=“some name”>` Using `logback 1.2.3` Cheers, Pavel