Rename Node back to CircleItem #190
Description
The apps and development could benefit from geometry items. The naming of those items is better to be consistent because there are so many of them. The Node was already named CircleItem in the past but the reason was lost in the process. Node is confusing because there already is the DOM API Node that is very abstract, and then there is the affine subtree.
Examples of possible geometry-based items:
- CircleItem: a circle disc with HTML content.
- PointItem: always rendered at certain size?
- PathItem: line segments
- VectorItem: arrow features
Alternative names but mapping not clear:
- Disc (Circle + Item)
- Dot (Point + Item)
- PathItem (Path + Item)
- Arrow (Vector + Item)