title: When editing Lisp code, can emacs be configured to display each nested level of parentheses in a different color?
body: <p>In other words, a block of code like this:</p>
  
  <pre><code>(setq initial-major-mode
    (lambda ()
      (text-mode)
      (font-lock-mode)
      ))
  </code></pre>
  
  <p>... would come out looking like something like this:</p>
  
  <p><img src="https://i.stack.imgur.com/kiaIG.gif" alt="alt text"></p>
  
  <p>If something like this already exists, what is it? And if it doesn't exist, how should I go about writing it?</p>