Partially close a side menu?

I’m trying to create a UI like this (try clicking the hamburger button) – that is, I want a side menu with icons along the left margin that I can minimize so that it shows just the icons.

It looks like this is a job for “ion-side-menus”, but that directive is hard-coded to completely close the menu instead of just mostly closing it.

Is there any way to hack around this?

      =-Peter