To make inline SVG logo for UNA site which depends on light/dark switcher in UNA you need to insert the following code in Studio > Designer > Injections > HEAD injection:

<style>
  .circle {
    fill: black;
  }
  html.dark .circle {
    fill: white;
  }
</style>
<script>
$(document).ready(function () {
  $('#bx-logo-container a').html('<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" class="h-16"><circle class="circle" cx="50" cy="50" r="40" /></svg>'); 
});  
</script>

#tipsandtricks