Yes, it has nothing to do with KDE. But, I'm using it on my KDE desktop!
I really like this sword. When I was made this picture I was thinking to those games with monsters and palladins, mages and dragons. In such a game, this sword is a powerful weapon, very expensive, with a hight rating (in fact, you can't buy it, you have to win it). The runes of his blade are holding a very powerful secret.
...so, if you like it, you keep it :)