Theme changing option in f-spot?

[Nyall <nyall zombiepigs net>]

I've just compiled and been testing the latest version of f-spot, and
one change I've noticed is the option to change the theme in f-spot. Not
wanting to tread on anyone's toes, but I'm a little curious as to why
this feature has been added. To me it seems rather pointless - why would
anyone want to have f-spot in a different theme to the rest of their
desktop? I think it's also contrary to the Gnome HIG, as it's cluttering
up the preferences dialog with an option very few users will require.

Am I missing an important use-case for this function? What's the
rational behind it?

Regards,

Nyall