ref="https://ggplot2.tidyverse.org/reference/ggplot.html" class="external-link">ggplot</a></span><span class="op">(</span><span class="va">df</span>, <span class="fu"><a href="https://ggplot2.tidyverse.org/reference/aes_.html" class="external-link">aes_string</a></span><span class="op">(</span></span>
<span>  y <span class="op">=</span> <span class="st">"Proportion"</span>, x <span class="op">=</span> <span class="st">"Source"</span>,</span>
<span>  fill <span class="op">=</span> <span class="st">"new_colou