Steps to reproduce:

1. Open a Unity Project
2. Open UI Toolkit Debugger via Window > UI Toolkit > Debugger
3. Select any panel in the dropdown
4. Select any element (EditorPanelRootElement is the quickest to press as it is the first element). The first side of the page should be filled with the layout details
5. On the layout diagram, hover over any of the horizontal layout values (left or right values)
6. Observe how the specific component (either margin, border or padding) is highlighted, while all the other components turn white. This is expected behaviour.
7. On the layout diagram, now hover over any of the vertical layout values (up or down values)
8. Observe

Actual results: The entire diagram remains filled in, and the specific component is not highlighted

Expected results: The rest of the diagram turns white, and only the specific component remains filled in colour. This is how it is when hovering over any other area of the component (blank space or horizontal layout values)

Reproducible with versions: 6000.1.0a5, 6000.0.28f1, 2022.3.52f1, 2021.3.45f1

Not reproducible with versions: - 

Can’t test with versions: - 

Tested on (OS): Mac

Notes: -