Name: SciDavis
Homepage: http://scidavis.sourceforge.net
Why we should include this into the repository? It is an open source pkg to plot high quality graphs for academic works. SciDavis is friendly user and really easy to learn how to use. I use Solus as my main (and almost unique) OS to do everything, including my job as scientist.
Is it open source? Yes, it is.
Link to the most up to date, versioned source tarball/zipfile. https://sourceforge.net/projects/scidavis/files/latest/download