
I have two possible suggestions: Include another section above the raw materials that includes icons (but not names) for the intermediates. -or- Include the steps in the hover-box (that might take up a loooot of room though.)
NB: This may have been suggested previously. I searched, but was unable to locate a thread about it (doesn't help that many thread titles are 'suggestionsummary'), so if this exists already, please feel free to ... do whatever to this thread!