Hi,

I tested some of the examples on the weekend. A lot seems to work already, huge thank you for all your work!
I guess you are already aware of this stuff, but i still wanted to list some things I noticed in the examples:

1. Anchors: ConnectionPoints not showing --> Fixes the 'Anchors' example. #77
2. Collaps: Doesn't work --> fix: correctly manage default style.foldable value #385
3. ContextIcons: No icons showing --> fix: prevent error when not passing "mapping" to Graph.cloneCell #413
4. Swimlanes: Empty example --> fix: SwimlaneMixin handles the 'style.horizontal' undefined value #156
5. Validation: There was no highlighting and it started to lag pretty heavy, when i hovered over the targetElements (lots of errors in the browser console) --> see The performance of the getCell method of the CollectionHandler class is different from that of the old version after migration. #362
6. UserObject: Vertex not showing --> fix: make usage of Codecs work in stories #350
   ...

Tried to adjust the Toolbar example:

• Connections can be created/moved inside of shapes (i dont think that is intended?)
• ConnectionHandler suggests method "createElement()", i believe it should be "createTarget()"?

Dont know if that is of any help, but atleast wanted to report what i found.
I am unsure if i can really test in the future, but it might be possible.
If so is there any guide how to test this repo in a good way and how to report them so that it is actually useful to you guys?

Thanks