testing trixie-rc1 with the cinnamon desktop, I notice menu items such as
"Accessories" lacks an icon.

apt-file search applications-accessories , showed me theme packages I can
install so I can get the appropriate menu icon.

noticed that the menu icons show up after using tasksel for 'Gnome
Flashback'.

^ I suppose there could be an instruction-hint somewhere so that the user
also checkboxes this category.