pan class='fu'>stat_horizon</span><span class='op'>(</span><span class='fu'>aes</span><span class='op'>(</span><span class='va'>year</span>, <span class='va'>level</span><span class='op'>)</span><span class='op'>)</span>

<span class='co'># Add color scheme</span>
<span class='va'>h</span> <span class='op'>+</span> <span class='fu'>theme_void</span><span class='op'>(</span><span class='op'>)</span> <span class='op'>+</span> <span class='fu'><a href='scale_fill_hcl.html'>scale_fill_hcl</a></span><span class=