Configuration files consist of lines, each one of which can be blank, a comment, or a configuration. Blank lines contain only whitespace characters and are ignored. Comment lines start with a pound sign (#) and are ignored. For example:
tabsize: 8
background: #ffffff
moon: On
linenumbermode: Both Numbers
prompt: "MULTI> "
status.stopped: STOPPED
key: "Up"@Command=backhistory