This morning when preparing the update of a package, and I saw a PNG file in
its documentation.  Even before opening it, I felt old, tired, distressed
and unable to escape the situation.  Inspecting the file confirmed that the
image was not hand made.  The source file is missing.  The proof: anther
image in the same directory has the same style and a SVG source.  To make
things worse, there are no instructions on how to generate the PNG from the
SVG.  More and more in these cases, I give up and abandon the package.  I
lost time and energy make Upstream some requirements for which I personally
have no concrete interest.  SVG in addition to PNG is better, but PNG alone
for the documentation of a Free software is Free enough for me.  However,
the points of view expressed on debian-devel give me the impression that
it is not good enough for Debian, so I just give up…