Can you prologn the selected row highlight till the end of the panel and make in full panel width. The empty space looks not too fine IMHO.
Not high proriority issue of course
@therube
Configuration/Appearance -> "Highlight focuse row" (Detailed modes only)
Configuration/Color/Items in panel -> "Highlighted part of row" -> Custom color of background...
I would like to +1 this request with an amendment: make the whole row also respond to clicks (to focus the item etc.). Otherwise there's sometimes not too much space to click on.
(Maybe there should be a narrow margin on the right so that the current directory's context menu is available.)