Do you think it would be enough to make the separation more clear by making the thin, white lines thicker or in a dark color?
When hovering over the resource, the background of the icon is brown to distinguish the selected good.
I can imagine they didn't add the name of the goods to save more space, so that's probably why players only see this information in the tooltip.
If you have any ideas (from any area of Elvenar or even another game) that does this separation in a better way, feel free to add them here.