title: How to change the default font size in interactive treemap built using d3treeR and treemap in R?
body: <p>I am making interactive multi layered treemaps and exporting them as HTML files -  this is how my code looks like:</p>
  
  <pre><code>library(googleVis)  #not really needed, only using the datset "Fruit" in example
  library(treemap)
  library(d3treeR)
  
  fruitTree &lt;- d3tree(
                treemap(Fruits,
                        index=c("Fruit", "Year"),
                        vSize="Profit",
                        vColor="Fruit"
                       )
                       ,rootname = "Fruit")
  
  htmlwidgets::saveWidget(as.widget(fruitTree), "D:/temp/fruit.html")
  </code></pre>
  
  <p>I do not like the default font sizes and I do not find any option to manipulate them (at least for the interactive vizs. when 'treemap' command is used). </p>
  
  <p>This is how the output looks like:</p>
  
  <p>1st layer: <a href="https://i.stack.imgur.com/CKFoU.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/CKFoU.jpg" alt="enter image description here"></a></p>
  
  <p>2nd layer, when you click on one of the blocks: 
  <a href="https://i.stack.imgur.com/UHxIX.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/UHxIX.jpg" alt="enter image description here"></a></p>
  
  <p>Any help is greatly appreciated. </p>