title: How to customize icons near the scrollbar in the Eclipse Java editor?
body: <p>The Eclipse java editor displays small colored rectangle icons just to the right of the scrollbar to indicate lines with //TODOs, deprecated statements, etc.  One of the most useful shows the other occurrences of a currently selected variable, but the color of this one is practically the same as the background.  </p>
  
  <p>What are these icons called and how can I customize the colors?  </p>
  
  <p><img src="https://i.stack.imgur.com/kmYXz.png" alt="icons in eclipse IDE near editor scrollbar"></p>