title: Change the color of special characters in VS Code?
body: <p>In VS Code, I would like to highlight any tab characters that appear in my code in bright red as I prefer to use spaces only.</p>
  
  <p>I have the render whitespace setting enabled, and I have looked through the <a href="https://code.visualstudio.com/api/references/theme-color#editor-colors" rel="nofollow noreferrer">Theme Color</a> configurations, but I am not seeing anything that I can set relating to special characters.</p>
  
  <p>Is there any way currently to add this customization?</p>