FM / devutf8

/usr/share/groff/1.18.1.4/font/devutf8

Name	Size	Mode	Actions
B	5531	0644	edit dl rm
BI	5532	0644	edit dl rm
DESC	115	0644	edit dl rm
G	80	0644	edit dl rm
I	5531	0644	edit dl rm
M	80	0644	edit dl rm
R	5516	0644	edit dl rm

Edit: /usr/share/groff/1.18.1.4/font/devutf8/M (80B)

name M internalname 4 spacewidth 24 charset u0100..u07FF 24 0 u0800..uFFFF 48 0