maybe i'm wrong but i believe that i would be more easier for the user if icons already display in the toolbar would be in also in menus
It would help users to find stuff
i.e i don't know in what menu is X. But X isquite similar to Y which is in the toolbar. Let's find Y in menus and i'll surely find X
Besides, while looking in menus for something that is not in toolbar, user would not lose time reading entries that already are in the toolbar since it would be clearly identified in menus thanks to their icons already display in the toolbar
what do you think ? why not displaying in menus icons already shown in toolbars ? By showing icon in toolbar and text in menu for the same thing, you don't facilitate things to the user!