WHen placing the panel next to the iconbox, you can notice easy the two don't have the same height. When chaning the panel's height in options it would be intresting if there was a sort-like option for the iconbox. Or maybe iconbox's size could behave the same as the panel.
Yes, there should/could be a little more integration between the iconbox and the pabel. I will probably be rewriting some of that code, so I'll keep this in mind.
This is not actually a bug, but a feature request.