In the Ubuntu Mono a number of the characters are "bulked out" to the full width of the monospace grid by using serifs (even through the core design has non-serif tendencies), these include the letters in the word
'flirt' and to a less-extent, 'j' and '1'
a few alternatives have been proposed, circular serifs, half-serifs and full horizontal serifs.
One possibility is to use the straight serifs for the uprights and the curved variants for the monospace italics to give a bit of a difference (with monospace there is no opportunity to tightening the tracking).
In the Ubuntu Mono a number of the characters are "bulked out" to the full width of the monospace grid by using serifs (even through the core design has non-serif tendencies), these include the letters in the word
'flirt' and to a less-extent, 'j' and '1'
a few alternatives have been proposed, circular serifs, half-serifs and full horizontal serifs.
One possibility is to use the straight serifs for the uprights and the curved variants for the monospace italics to give a bit of a difference (with monospace there is no opportunity to tightening the tracking).