>
<span>                       space <span class="op">=</span> <span class="st">"Lab"</span>, na.value <span class="op">=</span> <span class="st">"grey50"</span>, </span>
<span>                       guide <span class="op">=</span> <span class="st">"colourbar"</span>, aesthetics <span class="op">=</span> <span class="st">"fill"</span><span class="op">)</span> <span class="op">+</span></span>
<span>  <span class="fu"><a href="https://ggplot2.tidyverse.org/reference/ggtheme.html" class="external-link">theme_v