A Ghost refers to an instance of a recorded avatar within the room. Properties for the ghost invariant to the recording, such as scale, colour, and custom geometry used to represent the ghost can all be specified. When no geometry is specified for the "head" and "body" parts of the ghost, a default boxy appearance is used. Since a Ghost is a recording, there are options to set the recording to loop and to auto_play on room entry.
This is an experimental version to fix ghost support.
http://janusvr.com/docs/build/roomtag/index.html#Ghost