Change logo in learn2 / grav rtfm skeleton

Is there anybody using learn2 or the above skeleton who knows how to change the grav logo in the sidebar? I can't find a png or jpg for it in the system folders.

The logo is an SVG, you can find it in https://github.com/getgrav/grav-theme-learn2/blob/develop/templates/partials/logo.html.twig

You can change this file in the theme itself or in an inherited theme.

Thanks I didn't realise that file was the code for an svg. I've never used an svg for a logo before!

svg is better as it is not bitmap based. Vector won't loose it's quality when zoomed in or out.

Also great for Retina displays which are becoming more and more common.