title: Changing the font in my ggplot dendrogram
body: <p>I tried plotting a colorful dendrogram to include in my thesis, and it all works just fine apart from one thing: changing the font. I plotted many dendrograms before, and changing the font was never a problem, but in this code it suddenly is... I probably tried to write family=&quot;serif&quot; in about any space possible, but idoes not work. My code:</p>
  <pre><code>dencw3m &lt;- as.dendrogram(aggl.clust.manhattan.ward.cw3m)
  
  dendro.col.cw3m &lt;- dencw3m %&gt;%
    set(&quot;branches_k_color&quot;, k = 5, value =   c(&quot;blue&quot;, &quot;red&quot;, &quot;limegreen&quot;, &quot;gold&quot;, &quot;darkorange&quot;)) %&gt;%
    set(&quot;branches_lwd&quot;, 0.6) %&gt;%
    set(&quot;labels_colors&quot;, 
        value = c(&quot;darkslategray&quot;)) %&gt;% 
    set(&quot;labels_cex&quot;, 0.5)
  
  gg.cw3m &lt;- as.ggdend(dendro.col.cw3m)
  
  ggplot(gg.cw3m, theme = theme_minimal()) +
    labs(x = &quot;Fall&quot;, y = &quot;Homogenität&quot;, title = &quot;Dendrogramm cw3m&quot;, family = &quot;serif&quot;, cex = 0.4, hang = -1)
  </code></pre>