n>      na_color <span class="op">=</span> <span class="st">"white"</span></span>
<span>    <span class="op">)</span>,</span>
<span>    fill_opacity <span class="op">=</span> <span class="fl">0.5</span>,</span>
<span>    min_zoom <span class="op">=</span> <span class="fl">7</span>,</span>
<span>    popup <span class="op">=</span> <span class="st">"estimate"</span>,</span>
<span>    hover_options <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list<