The Code Injection allows you inject a small snippet into your Ghost site. It can be a CSS override or a analytics tracking and or a javascript element.

Blog Header

<!--	Change text color of the page title and description.
		Experiment (f5f5f5) with your own 6-digit hex color. 
		More details: firepress.org/... -->
<style>
    .page-title,
    .page-description {color:#2E2E2E!important;
     }
</style>

<!-- 	Monitor your site with Google Analytics 
	 	Change UA-XXXXXXXX-X with your own ID
		More details: firepress.org/... -->

<!--	Google Analytics -->

<script>  
  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');

  ga('create', 'UA-XXXXXXXX-X', 'youblogdomain.com');
  ga('send', 'pageview');
</script>

<!--	Description -->

Blog Footer

<!--	Web chat by smooch.io -->
    <script src="https://cdn.smooch.io/smooch.min.js"></script>
    <script>
    Smooch.init({ appToken: 'YOUR-TOKEN' });
    </script>

<!--	Description -->