Hello, @root66,
Thank you for reaching out.
You can only use PNG and JPEG formats for the logo. If you’d like to use an SVG logo on your site, you can create a Custom Header by going to Porto >> Template Builder >> Header.
From there, you can add a Custom HTML element and insert your SVG icon code.
Please note that this method won’t function as a logo element.
I hope this clarifies things!
Best Regards,
PThemes Team.