SVG logo
By default, WordPress doesn’t allow you to upload SVGs because SVG has intrinsic security issues. That’s why theme does not support svg format.
If you do need to SVG upload support, you can install SVG support plugin.
Then, add following CSS rule into Dashboard – Theme Options – Advanced – Custom CSS:
.branding a img{
height: 80px;
.mobile-branding img {
width: 60px;
Adjust the width as per your requirements.