How can I modify the navbar on mobile screen ?

[Gitstar-OC]

I want to add this section which is below the toc to the navbar ? Is there any way to do that ?

The change appearance button beside the search icon on mobile screen

Maybe like this

Is there a way I can just add somethings on the mobile and not on the navbar.

[fuma-nama]

You can replace the default navbar with your custom one from docs layout