I was referring to the # pound syntax for fields.
fields can be used with a . or - prefix much more pleasingly to the eyes. An untrained eye would take the # for comments.
TestDomainObject {
#created : DateAndTime [ '2012-02-14T16:40:15+01:00' ],
#modified : DateAndTime [ '2012-02-14T16:40:18+01:00' ],
#integer : 39581,
#float : 73.84789359463944,
#description : 'This is a test',
#color : #green,
#tags : [
#two,
#beta,
#medium
],
#bytes : ByteArray [ 'afabfdf61d030f43eb67960c0ae9f39f' ],
#boolean : false
}