PNG image format. It somewhat resembles the Linux bwbar (although there is no
connection to it).
Features include measurement both on interface and assigned IP-address basis,
possible to run non-root and non-setuid, quite customizable (colours, geometry,
device max speed, etc). It also includes text output to the image.
PR: ports/76275
Submitted by: Fredrik Lindberg <fli@shapeshifter.se>
