I found interesting bug while working on touchpad and "toolManager.mouseWheelBehavior": go.ToolManager.WheelZoom,
When i’m trying to pinch in or pinch out it works properly, it zoom in and zoom out. When I put two fingers to touchpad and move it to top or to bottom it zoom in and zoom out too, BUT when I move to left or to rigth it only zoom in the diagram.
My expectation by moving two fingers is moving the diagram not zoom.
Without "toolManager.mouseWheelBehavior": go.ToolManager.WheelZoom, it works properly.
Not sure if this was intended, but this seems to have reversed how the mouse scroll wheel works. Scrolling up on the wheel should zoom in, but now zooms out and vice versa.
@walter, the people that have reported it are using Chrome >65.0 on Windows 10. As far as hardware, I believe they are all Lenovo wireless mice with a center scroll wheel.