Is your feature request related to a problem? Please describe.
Thanks a lot for this great new xray feature.
the tree display in the view shows different icons for different types of resources and I think this is a great idea.
But I could not find any help on those.

Describe the solution you'd like
One possible solution would be to have those icons described in the help for xray

Describe alternatives you've considered
Another solution would also be to have some kind of line at the bottom of the view to describe more what is current selected. This could in fact be used for any view, some status line describing what is selected.

Additional context
Well those icons could also be used in other resources view with may be just in the view title so that people learn their meaning. This is a shame the the CNCF does not provide any visuals for K8s resources, I remember having looked at them for some diagram and failed to find any. I quite like the one you have picked by the way.