The existing layouts are fun, but there's much more we can do.
PART 2 Xfce's Panel Profiles app can rearrange your desktop, but getting every layout working properly still takes some manual tinkering.
For instance, the Unity layout's global menu is at once followed by the status icons, when they ought to be over on the right. Some of these issues are easy to resolve with the built-in tools, while some need a little more work.
In the Unity layout, it's easy to push the status icons and session controls over to the right, where they belong.
Choose the panel you want to change, find a blank part of the panel, and right-click it. Go into the Panel submenu, then click Panel preferences.
In the Panel Preferences dialog box, the first two lines are a backup button, then a listbox to choose which panel you're editing.
Use the "up" button to move it up the list until it's directly after "AppMenu Plugin (external)".
To adjust the separator's own settings, click the button with a wrench below the list – it's directly after +Add and -Remove. Set its Style to Transparent and tick the Expand checkbox.
For the "Cupertino" layout, the fix for the aligned menu is even simpler. Go into the preferences for the top panel, and go to the Items tab.
Go to the second tab, labelled "Appearance", and under the heading "Panel Button", the first entry should be labelled "Display". Change it from "Icon and title" to just "Icon," then click the Close button.