I have to disagree the spec clearing states, ~/.config is the default
location (configuration files) unless otherwise set. It is IMO is where
gconf should be putting all configuration files it deals with.
<quote>
$XDG_CONFIG_HOME defines the base directory relative to which user
specific configuration files should be stored. If $XDG_CONFIG_HOME is
either not set or empty, a default equal to $HOME/.config should be used.
</quote>
So, ~/.config/Inkscape is where we should be if everything is default
which to my knowledge is true on most *nix systems. And if not we get it
by grabbing the correct directory. As to where palettes and other media
supplies go, You maybe correct I'm not sure on that point but I thing
the CREATE project covers those. :)