Configurable responsive breakpoints?

[Celti]

The standard dokuwiki template allows configuring @ini_tablet_width and @ini_phone_width to establish responsive design breakpoints. I rely on this feature because I have several users who insist on using browser windows aligned to precisely one-half of a 1080p screen.

This winds up 960px wide, and falls below the configured medium breakpoint where SprintDoc turns the sidebar into a hamburger button — despite the wiki still being perfectly usable in "normal" mode at that width, particularly with the collapsible sidebar.

Would it be possible to offer a style override for the selected responsive breakpoints?