anchor.diff:          }
       }
   }
  -
   ----
   <1> extend from `Classification`
   <2> the type-safe reference property to the "classified" domain object (in this case `DemoObject`).  In the RDBMS
  
positive.code: `Classification.CssClassSubscriber`.  The consuming module can override these values simply by providing alternative
  implementations.
  
  [TIP]
  ====
  The (non-ASF) http://github.com/incodehq/incode-module-alias[Incode alias] module also allows the title/icon/CSS class to be overridden; its example application includes an example to demonstrate how this is done.
  ====
  
  
  == Other Services
  
negative.code: +
  These contribute the "classifications" collection and actions to add and remove ``Classification``s.
  
  Typically the SPI implementations and the mixin classes are nested static classes of the `Classification` subtype.
  
  
  
  