title: Customize ggcorrplot
body: <p>I want to reduce the size of markers in <code>ggcorrplot</code>, and reduce the space between text and the plot.</p>
  
  <pre><code>library(ggcorrplot)
  data(mtcars)
  
  corr &lt;- round(cor(mtcars), 1)
  ggcorrplot(corr,sig.level=0.05 ,lab_size = 4.5, p.mat = NULL, insig = c("pch", "blank"), pch = 1, pch.col = "black", pch.cex =1,
    tl.cex = 14)
  </code></pre>