I tried to report an lxde issue a while back
https://sourceforge.net/p/lxde/bugs/936/
I would expect t get a menu editor for menu settings but the reply suggests otherwise.
it seems we can change the menu graphic but need to edit the menu by hand with a text file.
I remember the old days, manually editing the xfree86Config file (or even using a text menu program) But that was mid 90's so only 25 years ago, we should really have moved on a little by now.
Problem is I also look at things from a user viewpoint so accept their argument to a point but feel other users just see something as being sloppy or buggy leaving a bad impression.