title: Showing a different background colour in Vim past 80 characters
body: <p>I have seen <a href="https://stackoverflow.com/questions/235439/vim-80-column-layout-concerns">Vim 80 column layout concerns</a>, but the answer there highlights only actual content that goes over the 80 character mark. I want to have a 100+ column Vim window open with the leftmost 80 columns using the normal background and anything past that using a slightly different background. The Vim window background should be a different color, not just text that goes over the 80 character point. This would indicate how close I am getting to the 80-char point without having to go over it first.</p>
  
  <p>I don't think this is currently possible, but I thought I'd ask just in case.</p>
  
  <p>Maybe it could be done with a plugin?</p>
  
  <h2>TextMate Example of Desired Vim Right Margin Highlighting</h2>
  
  <p>By selecting "Highlight right margin" in TextMate's general preferences, you can see an example of the desired Vim behavior.</p>
  
  <p><img src="https://i.stack.imgur.com/pXRaG.jpg" alt="TextMate Right Margin Highlighted Example"></p>