Henning Makholm wrote:
On the other hand, it is difficult to imagine that the Elektrostore swirl is independently created starting from a straight brush stroke. <http://henning.makholm.net/debian/swirls.xcf> is the logo bar from www.elektrostore.se, with a genuine Debian swirl in another layer - try turning down the transparency to see how the geometry of the spiral matches too.
Now, Debian really ought to be complaining about this. We have documentation for the creation and use of the swirl, and it's clear they ripped it off. They're in the same industry so there's a real risk of confusion..
Not dealing with known cases like this *is* how you lose a trademark.