title: What is the purpose of View>Page Style in Firefox?
body: <p>What is the purpose of this menu? Are there supposed to be more options than <code>no style</code> and <code>basic page style</code>? Can I add more Styles? Does this have a history?</p>
  
  <p><img src="https://i.stack.imgur.com/Yop42.png" alt="menu">
  <img src="https://i.stack.imgur.com/T5whT.png" alt="view">
  <img src="https://i.stack.imgur.com/ogJRn.png" alt="page style"></p>