title: Terminator 1.91 change tab theme/color using gtk3 css
body: <p>I have been trying to change the tab theme (i.e. color, height) etc. I have been googling, and found a writeup <a href="https://askubuntu.com/questions/664466/how-to-change-the-design-of-tab-in-terminator">here</a>, but this does not seem to work for either terminator, or terminal. But the focus is on Terminator. </p>
  
  <p>OS's tried are Ubuntu 18.04 and Mint. I am installing Terminator 1.91 from source (avoiding distro to have truecolor support).</p>