Post #2362: 
casterle:
I can’t get this working.
roaoao:
L.prop(C.space_data.shading, "type", expand=True)When I put
L.prop(C.space_data.shading, "WIREFRAME", expand=True)
Use that exact code in the first slot/button of a new empty pie menu (Custom tab). Don’t modify the code.
L.prop(C.space_data.shading, "type", expand=True)
This code will display all available shading types as separate buttons.
If you want to write the code for each slot manually you can use this (Custom tab):
L.prop_enum(C.space_data.shading, "type", "WIREFRAME")
You can find all available functions here.
casterle:
If I try your 2nd example:
It was just an example of how to highlight a tool button.
casterle:
is there a way I can view how a standard pie menu item is configured so I can look at examples
This doesn’t work for pie menus but for most of buttons you can find the source code in RMB context menu:
https://i.imgur.com/6oqzyjS.mp4
casterle:
rather than having to bother you here?
Np, feel free to ask 
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