OK, don't laugh, my GIMP skills are...gimpy. But I thought I would actually try some styling to help show what I would envision as good visual elements for distinguishing home page areas:
(NOTE: I show four different styles here to give a taste, but would obviously want all four minions to have the same highlighting.)
For the first example (minion "Joe"), just a pale color offset. The second (minion "Hubbell Man") involves a gradient, not sure if that is feasible in the new theming (I know zero about CSS). The third example (minion "Dave") has a simple line...don't really like the look of that. And the fourth example uses simple italics for an offset.
Indenting works too...just indenting the items under the minion names would go a long way. As far as the above methods, I like the pale-color background the best (minion "Joe"). The color could even be paler, but still match the overall color scheme. The gradient is kind of cool too, though might be even cooler if it just graded into the background color itself.
Anyway, my visual skills are far from great, but these are some ideas...