Kha This has been on my mind for a while to try. I haven’t gotten around to it. One major problem is that with the current mobile UI, the middle of the top nav bar is used on most pages to display something like “All Discussions” or “1 of 50 posts.” There’s very little space for a logo. You could put a tiny logo next to the hamburger menu.
From what I can tell though there isn’t an easy way to extend the nav bar. I’ve seen extensions add things up there using absolute positioning. But, I haven’t seen a way to direct target and inject something into the nav bar.
You could use JavaScript to target a div up there and dynamically insert a logo.
Or, you can add a logo to the footer since you can easily do so from the admin settings. Then with CSS absolute position it to the top and only on small screens.
In short, it can be done. But, I don’t have the code for you.
Maybe someone else will stop by this thread and offer to help. Good luck!