Additional

The custom painting code executes after item's interior and frame are painted by AvaloniaDiagram, but before text is rendered. In this mode, the DrawingContext instance passed to the custom drawing event handler has a clipping region applied to it.

Additional2

The custom painting code executes after all parts of an item are painted by AvaloniaDiagram. In this mode, the DrawingContext instance passed to the custom drawing event handler doesn't have a clipping region applied to it.

Full

The component does not do any standard drawing, the entire painting of an item is done by the application.

None

Do not perform custom drawing, let all painting be done by AvaloniaDiagram.