User blog comment:Ḡwẵine Ḹٍٍkƨ Ĺiĸe Ͼềлȑềd/Wallpaper/@comment-1983269-20120426075356/@comment-4190137-20120428013830

Yes, the edges are straight lines, aren't they? And it is an effect where it plays tricks with your eyes to think it is not stright.