! In rxvt-unicode, M and m characters missing the left vertical stroke if buffering is enabled
! See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=961362
-URxvt*buffered: false
+!
+! First solution: https://unix.stackexchange.com/a/118665
+!
+! Second solution: disable buffering. But that tends to leave garbage in the terminal.
+!URxvt*buffered: false
+!
+! Third solution: increase letter spacing, see
+! https://unix.stackexchange.com/questions/118641/font-rendering-issue-in-urxvt-too-much-space-between-characters
+!URxvt.letterSpace: 1
! See https://github.com/muennich/sxiv
! https://github.com/muennich/sxiv/pull/392 (pull request to toggle bar background)