Is there a way to use AppShell Header and Footer fit-to-content heights?

[mfulton26]

I'd like to use <AppShell> but from what I can tell I have to set the height manually. Is there no way to make it automatically fit to the content in them? I haven't looked at the implementation details yet but it seems to me that a full height flex-box with the header and footer shrinking at the top and the bottom of the stack with the main content stretching to fill the center would be nice (and the main content ideally would be scrollable too for overflow).

[rtivital]

No, AppShell does not support this feature because it uses fixed position elements.

[mfulton26]

In the past I've sometimes made my own shell but I'd rather not keep doing that. Is fixed position elements a requirement for AppShell or could a flex variant be supported too? From what I understand, only the root element of the shell needs to be fixed but from there all the descendants could use flex.