anchor.diff:  of some elements or the usage help message header or footer.
   
   Picocli supports a custom notation for mixing colors and styles in text,
  -following a convention introduced by http://fusesource.github.io/jansi/[Jansi], where
  +following a convention introduced by https://github.com/fusesource/jansi[Jansi], where
   `@|` starts a styled section, and `|@` ends it.
   Immediately following the `@|` is a comma-separated list of colors and styles.
   For example:
  
positive.code: You can omit some of the boilerplate code from your application by letting the annotated object implement `Runnable`.
  This allows you to invoke `CommandLine.run(new MyApp(), args)`, which is the equivalent of:
  
  [source,java
  ----
  Runnable runnable = null;
  try {
  
negative.code: Use the `footer` attribute to specify one or more lines to show below the generated usage help message.
  Each element of the attribute String array is displayed on a separate line.
  
  The `headerHeading` and `footerHeading` may contain format specifiers. See <<Section Headings>>.
  
  
  === Abbreviated Synopsis
  