Editor
This document is for detailing usage of the Editor by regular users (as opposed to the API of the Editor for programmers).
Until we may flesh this document out further, we may begin with tips on the features which are more non-obvious as to usage (including for novices to graphic design). Feel free to file an issue to request documentation on a particular feature.
See also some possibly out-of-date documentation at FrequentlyAskedQuestions.
Paths
When working with a path (as created by the Path tool left ("mode") toolbar item or "Convert to Path" in the "context" toolbar at the top), chosen by the "Select" left-toolbar item, clicking the item once will allow the normal resizing/rotation, and clicking the item again will allow for independent manipulation of the path and display a different context-dependent toolbar at the top of the screen.