title: Adding extra texts to a venn diagram drawn using VennDiagram R package
body: <p>I have a code taken from the package VennDiagram for drawing a venn diagram (below). I'm able to implement this code to draw a venn diagram, but I would also like to add extra text to each of the partitioned areas (unique and common to I, II, II, IV). For example, after running this code, the unique section 'I' is 60, I will like to add something like XX XU at the bottom of 60, and so on for the other partitioned areas as well. Is there a way in R to modify this code to achieve these changes?  </p>
  
  <pre><code>library(VennDiagram)
  
  venn.plot &lt;- venn.diagram(
     x = list(
         I = c(1:60, 61:105, 106:140, 141:160, 166:175, 176:180, 181:205, 206:220),
         IV = c(531:605, 476:530, 336:375, 376:405, 181:205, 206:220, 166:175, 176:180),
         II = c(61:105, 106:140, 181:205, 206:220, 221:285, 286:335, 336:375, 376:405),
         III = c(406:475, 286:335, 106:140, 141:160, 166:175, 181:205, 336:375, 476:530)
         ),
  filename = "1D-quadruple_Venn.tiff",
  col = "black",
  lty = "dotted",
  lwd = 4,
  fill = c("cornflowerblue", "green", "yellow", "darkorchid1"),
  alpha = 0.50,
  label.col = c("orange", "white", "darkorchid4", "white", "white", "white",
   "white", "white", "darkblue", "white",
    "white", "white", "white", "darkgreen", "white"),
  cex = 2.5,
  fontfamily = "serif",
  fontface = "bold",
  cat.col = c("darkblue", "darkgreen", "orange", "darkorchid4"),
  cat.cex = 2.5,
  cat.fontfamily = "serif"
  );
  </code></pre>
  
  <p>venn digrams:</p>
  
  <p><img src="https://i.stack.imgur.com/ZnOf8.png" alt="enter image description here"></p>
  
  <p>Thanks</p>