[2 new] Mono: up/down triangles for Byobu terminal multiplexer

[Dustin Kirkland ]

Monospace unicode characters of the Ubuntu font are overrunning other characters and some things are just unreadable :-(

  U+25B2 BLACK UP-POINTING TRIANGLE (▲)
  U+25BC BLACK DOWN-POINTING TRIANGLE (▼)

[Dustin Kirkland  (kirkland)]

I'm marking this high, against the Ubuntu family.

[Paul Sladen (sladen)]

Interestingly these are not in the required.set at:

  "Wishlist: Enable use of Ubuntu Mono as .psf console-setup font"
  https://bugs.launchpad.net/ubuntu-font-family/+bug/724022/comments/1

although the following are:

   # U+25B6: BLACK RIGHT-POINTING TRIANGLE
   # U+25C0: BLACK LEFT-POINTING TRIANGLE

[Paul Sladen (sladen)]

Dustin has pointed me at:

  /usr/lib/byobu/.constants

which contains:

  if [ "$UTF8" = "1" ] || [ "$BYOBU_BACKEND" = "tmux" ]; then
        ICON_C="℃"
        ICON_F="℉"
        ICON_RD="◀"
        ICON_WR="▶"
        ICON_MAIL="⍌"
        ICON_UP="▲"
        ICON_DN="▼"
        ICON_TRASH="♸"
        ICON_WIFI="⚚"
  else
        ICON_C="C"
        ICON_F="F"
        ICON_RD="<"
        ICON_WR=">"
        ICON_MAIL="[M]"
        ICON_UP="^"
        ICON_DN="v"
        ICON_TRASH="T"
        ICON_WIFI=
  fi

Attached Unicode set file, a la '/usr/share/bdf2psf/' from:

  print '\n'.join(sorted([hex(ord(c)).replace('0x','U+').upper() for c in u'℃℉◀▶⍌▲▼♸⚚']))