An annotation placed on properties of Behaviour which are saved as part of the .act files.
.act
Properties of Behaviour are set via the Attributes dock.
Attributes
Properties of Role are set in the tab when editing the Role.
Role
Adds a tooltip.
tooltip
The property (which must be a String), refers to the path of an ActResource. When set, the GUI checks if the string is a valid path to an ActResource.