Some tools in thirdparty/ desserve their own package. For example,
guid.py is embedded in many python packages.

Huge space gain, for a frequently updated package like this one.
Build-Depend on nuvola-icon-theme instead of embedding nuvola.zip.
Modify copyright and dfsg_clean accordingly.
Wait for the nuvola-icon-theme maintainers to explain why the content
differs so much from nuvola.zip with the same readme.txt.
Check https://lists.debian.org/debian-qt-kde/2014/02/msg00072.html
Patching upstream is difficult because unit tests check the icons.
