Human Interface Guidelines
The Sugar Sugar Human Interface Guidelines provide insight into the design of the Sugar experience, as well as guidelines for designing custom icons, controls, and activity interfaces.
The Design Team manages a series of Design "slideshows" which illustrate various parts of the interface and how they function in a typical workflow.
The Design Team also maintains a list of specifications which provide additional details regarding the appearance and behavior of various software features. The specifications page is empty at present, but will be populated soon with preliminary specs for a number of features either currently implemented or planned for upcoming releases.