title: iTerm2: how to remove the right arrow before the cursor line
body: <p>Please look at the picture, It is a screenshot of iTerm2 Build 3.0.0</p>
  <p>the blue arrow at the beginning of the cursor line. How to remove or hide it?</p>
  <p><a href="https://i.stack.imgur.com/hmENn.png" rel="noreferrer"><img src="https://i.stack.imgur.com/hmENn.png" alt="enter image description here" /></a></p>