How to change the Grav logo?

I have been spending hours to try to change the Grav logo (on the default Quark theme), but none of the "solutions" found on the forum works.

I don't need to create a theme inhéritance, just need to change the logo and I will repeat the process if there is a theme update.

Is there a working simple solution ?

Admin > themes > quark > upload your logo 🙂

Oh no ! so simple ... I did not think to click on the Quark theme (because of my long life with wordpress...).
I went directly to the forum where this tip is not mentionned !
Thank you very much !