title: How to remove the Title Bar of Gnome applications
body: <h1>Problem</h1>
  <h4>I have one Ubuntu20 Desktop(<code>Gnome</code>) and I want it to be fully black and ideal. As reference, I have taken one Ubuntu20 Server and Installed <code>openbox</code> on it.</h4>
  <p>I hided the title bar of all the applications in <code>OpenBox</code> by editing the configurations in <code>/etc/xdg/openbox/rc.xml</code> and added</p>
  <pre><code>&lt;application class=&quot;*&quot;&gt;
        &lt;decor&gt;no&lt;/decor&gt;
        &lt;maximized&gt;false&lt;/maximized&gt;
      &lt;/application&gt;
  
  &lt;/applications&gt;
  </code></pre>
  <p>So that it will hide the title-bar of all the applications. Also, I am able to achieve my demand. Image shown below as example.
  <a href="https://i.stack.imgur.com/VcF39.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/VcF39.png" alt="openbox" /></a></p>
  <p>I want to perform the same on Gnome Desktop as well, but I don't know which config file to be edited for the same.
  Currently, my <code>Gnome</code> Looks like this
  <a href="https://i.stack.imgur.com/wz2fZ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wz2fZ.png" alt="gnome" /></a></p>
  <p>Any help for the following is appreciated
  Thank you.</p>
  <h3>NOTE: I don't want to use only terminal, but will be using other applications like Firefox, chrome, VLC, etc. without title-bar</h3>