title: How to change the font size in the second main title line of a plot
body: <p>In addition to this question (<a href="https://stackoverflow.com/questions/8112786/how-to-split-the-main-title-of-a-plot-in-2-or-more-lines">How to split the Main title of a plot in 2 or more lines?</a>) I tried to give the second main title line another font size. <code>cex.main=1</code> only varies the entire main title.</p>
  
  <p>So I haven’t found anything how it could work…</p>
  
  <p>Has anyone some hints?</p>
  
  <p>Many thanks in advance!</p>
  
  <p>My code:</p>
  
  <pre><code>    plot(1, main=paste("X:",1," ","Y:", 2," ","\nZ:",3)) # the “Z: 3” should get a smaller font size
  </code></pre>