title: Mark the regions over the zed graph
body: <p>Currently I am using ZedGraph to display my curve. I want to mark the particular regions of the curve over the ZedGraph control and label it like follows. </p>
  
  <p><img src="https://i.stack.imgur.com/tpel4.jpg" alt="enter image description here"></p>
  
  <p>Note: I need different type of markings in the X and Y axis based on the text size.  </p>
  
  <p>Thanks for your help in advance.</p>