title: Remove activity and new-output indicators in iTerm and zsh
body: <p>I'm occasionally updating my iTerm prompt with <code>zsh</code> to update current time:</p>
  <pre><code># in ~/.zshrc
  
  PROMPT='[%D{%H:%M}]'$PROMPT
  
  TMOUT=10
  
  TRAPALRM() {
      zle reset-prompt
  }
  </code></pre>
  <p>Since I have indicator-related options in iTerm enabled (&quot;Show activity indicator&quot; and &quot;Show new-otput indicator&quot; in Preferences &gt; Appearance &gt; Tabs), this occasional update, of course, results in tab showing spinning wheel for a brief time and a blue circle after that.</p>
  <p>Is it possible to somehow disable both indicators only for this particular function (<code>TRAPALRM</code>) or for <code>PROMPT</code> updates in general?</p>