title: How to show whitespace for given scope in a Sublime Text color scheme
body: <p>Is there any way to set white space visible for a given scope?</p>
  
  <p>I'm working on modifying a color scheme to suite my liking and would like to be able to show spaces within a given scope. I haven't seen anything suggesting it's possible within the <a href="https://www.sublimetext.com/docs/3/color_schemes.html" rel="nofollow noreferrer">color-scheme documentation</a> on Sublime's website.</p>
  
  <p>For my specific case, and I imagine there's other useful cases, I'm working with Markdown and want to highlight a double-space line-break. I'm able to set the background, but this doesn't look quite right. I'm hoping to be able to make whitespace visible for this small scope and change the foreground color to make it stick out.</p>