Steps to reproduce:
1. Create a project
2. Open UI Builder (Window → UI Toolkit → UI Builder)
3. Add any element to the hierarchy
4. Go to the “Flex” attribute in the Inspector.
5. Change the value of "Grow" attribute and notice the bolding of the field.
6. Go to the "Size" attribute in the Inspector
7. Change the value of "Height" attribute and notice the bolding of the field.
8. Go to the "Background" attribute in the Inspector
9. Change the value of "Height" attribute and notice the bolding of the field.

Expected result: Fields and values which are bolded after making a change are consistent between different fields
Actual result: In all 3 scenarios above, the highlighting is different

Reproducible in: 6000.0.37f1, 6000.1.0b5, 6000.2.0a1
Could not test in : 2022.3.57f1 (Attribute Background does not have a Size field)

Reproducible on: Windows 11, MacOS 15.3 (M4) (By the user)
Not reproducible on: No other environment tested

Notes:
The behavior after changing Grow in Flex:
Grow is highlighted, while Shrink is not.
Attribute name became highlighted
Field of the attribute (Basis) is not highlighted

The behavior after changing Height in Size:
The changed field (Height) is highlighted, while (Width) is not.
The attribute (Size) is highlighted and the field (Size) of the attribute is also highlighted.

The behavior after changing Height in Background:
Everything is highlighted. (Height, Width, Size, Background)

Images attached.