l"><a href="the-layered-grammar-of-graphics.html#layers"><i class="fa fa-check"></i><b>2.3.3</b> Layers</a></li>
</ul></li>
<li class="chapter" data-level="2.4" data-path="the-layered-grammar-of-graphics.html"><a href="the-layered-grammar-of-graphics.html#additional-components"><i class="fa fa-check"></i><b>2.4</b> Additional Components</a>
<ul>
<li class="chapter" data-level="2.4.1" data-path="the-layered-grammar-of-graphics.html"><a href="the-layered-grammar-of-graphics.html#scales"><i class="fa fa-check"