Dear Maintainer,

In the window listing packages and their versions, there are lines like

   foo               1.2.3.4.5-3.4 -> 1.2.3.4.6-2

I'd suggest finding the common prefix of these two strings, and
emphasizing the part after that common prefix, by boldface & using a
bright color. Here is what I'm talking about, shown by underlining:

   foo               1.2.3.4.5-3.4 -> 1.2.3.4.6-2
                             =====            ===