Overlapping pink and blue triangles, symbol of <a href="https://en.wikipedia.org/wiki/bisexuality" class="extiw" title="w:bisexuality">bisexuality</a>.
<a href="//commons.wikimedia.org/wiki/User:Fibonacci" title="User:Fibonacci">Fibonacci</a>, based on <a href="//commons.wikimedia.org/wiki/User:Switchercat" title="User:Switchercat">Switchercat</a>'s PD work <a href="//commons.wikimedia.org/wiki/File:Bitriangles.jpg" title="File:Bitriangles.jpg">File:Bitriangles.jpg</a>.
<span class="int-own-work" lang="en">Own work</span> by <a href="//commons.wikimedia.org/wiki/User:Fibonacci" title="User:Fibonacci">Fibonacci</a>, original biangles design is by Liz Nania (1997).