Whiteboard Feature of Diagrams.net

https://app.diagrams.net/?splash=0&ui=sketch

(The full URL can't seem to be saved in the dedicated URL field and so just adding it here)

I just tried the Sketch UI of Diagrams.net and found it very well done and easy to use.

I was surprised that it didn't seem to be featured more prominently on the Diagrams.net webpage. It seems great for lots of uses cases like planning, drafting, etc.. or even outlining/mind-mapping.

I discovered it via a Hacker News comment and so thought to share and also curious to hear your impressions on it? To me, it feels like a very elegant interface to use; there is minimal visual clutter, no menu, just the tools (rectangle, square, etc..). The controls are intuitive (can easily create shapes, add text, resize and add connections).