[ Thanks to panayara
for this link. ]
“Xara Xtreme, ( apt-get install xaralx) This is simple,
easiest vector graphics drawing program. It is very userfiendly, it
is very nice, which is not usual in this kind of applications.“Synfig, (apt-get install synfig synfigstudio) Synfig is a
powerful, industrial-strength vector-based 2D animation software
package Beware you have to apt 2 packages: synfig (the application)
and synfigstudio (the graphical interface to use it), so install
both.”