title: What does the orange color marker mean in Sublime text2?
body: <p>This is the screenshot of the orange color marker in Sublime text2.</p>
  
  <p><img src="https://i.stack.imgur.com/hGl83.jpg" alt="orange color marker in Sublime text2"></p>
  
  <p><img src="https://i.stack.imgur.com/dGk5Y.jpg" alt="orange color marker in Sublime text2"></p>
  
  <p>Best regards.</p>