Firefox themes as Art files

[Giuseppe Scrivano]

Hello,

after a discussion we had on IRC (I catch this occasion to announce the
#icecat channel on the freenode.net network), it seems that themes
could be considered "Arts" and it is not a problem if they are non-free.

Considering that Firefox themes don't contain only images but for
example .css files too, is it a good idea to consider them "Art" files?

Thanks,
Giuseppe