Theme SFO

Method	Signature	Comments/Sample
`attr (1)`	`SimpleAttributes attr()`
`attr (2)`	`string attr(string key)`
`attr (3)`	`string attr(string key, string defaultValue)`
`attrDefinitionList`	`DefinitionList attrDefinitionList(key)`
`attrItemSet`	`Item[ ] attrItemSet(key)`
`attrSimpleList`	`SimpleList attrSimpleList(key)`
`getAuthor`	`string getAuthor()`
`getDir`	`string getDir()`	the directory of the theme. If the same theme is installed multiple times, this will help differentiate them.
`getName`	`string getName()`
`getVersion`	`string getVersion()`