Vectorial image built straight from the original using Inkscape "Trace Bitmap" function.
<p><a href="//commons.wikimedia.org/wiki/Pearson_Scott_Foresman" class="mw-redirect" title="Pearson Scott Foresman">Pearson_Scott_Foresman</a>
</p>
<ul><li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Plavius" title="User:Plavius">Luís Flávio</a></li></ul>
<a href="//commons.wikimedia.org/wiki/File:Berlin_(PSF).png" title="File:Berlin (PSF).png">Berlin_(PSF).png</a>