I think it's actually transparent, not black.
$ dpkg -l ubuntu-mono Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Description +++-==============-==============-============================================ ii ubuntu-mono 0.0.36 Ubuntu Mono Icon theme
$ dpkg -L ubuntu-mono | grep desktop | rev | cut -d/ -f1 | rev | sort | uniq -c 14 desktop.png 3 preferences-desktop-accessibility.svg 2 preferences-desktop-keyboard.svg 2 preferences-desktop-locale.svg 14 user-desktop.png
I think it's actually transparent, not black.
$ dpkg -l ubuntu-mono Unknown/ Install/ Remove/ Purge/Hold Not/Inst/ Conf-files/ Unpacked/ halF-conf/ Half-inst/ trig-aWait/ Trig-pend /Reinst- required (Status,Err: uppercase=bad) ======= ====-== ======= =====-= ======= ======= ======= ======= ======= ======= =
Desired=
| Status=
|/ Err?=(none)
||/ Name Version Description
+++-===
ii ubuntu-mono 0.0.36 Ubuntu Mono Icon theme
$ dpkg -L ubuntu-mono | grep desktop | rev | cut -d/ -f1 | rev | sort | uniq -c desktop- accessibility. svg desktop- keyboard. svg desktop- locale. svg
14 desktop.png
3 preferences-
2 preferences-
2 preferences-
14 user-desktop.png