[logback-user] Best Practice to Setup Multiple Log Files for Multiple Classes

Hello all, I think my question has been answered before, but I will be damned if I can find it. Basically I have three classes (orangeClass, purpleClass, greenClass) that I want to log to their respective files (orangeFile, purpleFile, and greenFile). I would need to have a default log file that catches everything not coming from those classes as well. The last requirement is that I can change each one to debug/warn/info independently of each other. Can you point me in the right direction? Thanks in advance, Dan