A yellow swastika on blue background, commonly used as a symbol for the Swedish National Socialist Front.
<a href="//commons.wikimedia.org/wiki/User:Notwist" title="User:Notwist">Notwist</a>
Own work based on: <a href="//commons.wikimedia.org/wiki/File:Nazi_Swastika.svg" title="File:Nazi Swastika.svg">Nazi Swastika.svg</a>, with colors replaced with those from the Swedish flag.