n class="fu"><a href="https://ggplot2.tidyverse.org/reference/aes.html" class="external-link">aes</a></span><span class="op">(</span>x<span class="op">=</span><span class="va">long</span>, y<span class="op">=</span><span class="va">lat</span>, group<span class="op">=</span><span class="va">group</span>, order<span class="op">=</span><span class="va">order</span><span class="op">)</span>,</span></span>
<span class="r-in"><span>                 colour<span class="op">=</span><span class="st">"grey50"</span><s