Diagram types
The same scene model covers different diagram families. These are real scenes (the renderer test fixtures), live and editable.
Flowchart-style: elbow connectors with arrowheads​
ERD-style: bezier links, crow's-foot + diamond arrowheads, captions​
Freehand + block arrows​
Frames and grouping​
Element types: rectangle, ellipse, diamond, text, image, brush, frame, block-arrow; links route straight, orthogonal (elbow) or bezier, with ArrowheadStyle covering line caps, filled heads and ERD crow's-foot notation. See Shapes.