When zooming the diagram in or out, the tooltips (in the Adornment) stays the same size.
This causes the issue that when afterwards the user moves the mouse over the nodes, and the tooltips appear, they don’t scale up with the rest of the diagram and look wierd.
I’ve searched your website and the examples, and found no solution.
If I’ll zoom in or out when the tooltip is shown then you are right.
But if I’m taking my mouse curser out of the node and the tooltip disappers, and then I zoom in/out. Then when I’ll put my mouse curser again in the node and the tooltip will be displayed again, the tooltip won’t scale up with the rest of the diagram. As in the below picture, you can see it is much smaller than the rest of the diagram: