Describe the bug
If the screen scaling is set to a custom value (anything but 100%) the zoom point is wrong when you zoom with mouse wheel.

To Reproduce

1. Set screen scaling to 125%
2. Launch any plot in the demo
3. Zoom to a point using mouse wheel
4. Verify that the zoom point is wrong

Screenshots

Fix
To fix it you need to change https://github.com/swharden/ScottPlot/blob/404105e5d7ae8399b2e40e9bd64b246d3b3b80dd/src/ScottPlot.WPF/WpfPlot.xaml.cs#L448
From
var mousePixel = GetPixelPosition(e);
to
var mousePixel = e.GetPosition(this);