Provides a menu option to allow a crop operation on an existing SketchMorph. Very handy for modifying a SketchMorph on your desktop. Also provides basic change to how a rectangle is grabbed from the screen. A new crop/grab UI design is used.
In addition, two new Utility methods were added and one was re-grouped. The new Utilities grabScreenAndSaveOnDiskAsJpeg will save the grabbed rectangle as a JPEG file. It also prompts you for the output file name. A default file name is provided.