Focused windows magnifier (a.k.a. increase size of the focused window)

[thealio]

Describe the feature

Hi,
I'm both an xmonad and leftwm user. I use them with enourmous satisfaction.

There is one great feature that I miss from xmonad when I use leftwm, a feature that I think every windows manager shoud have, because is absolutley useful : focused window magnifier , that's to say toggle on and off the increased size of a focused windows , declaring a gived percentage increase ratio.
This is the feaure described on the xmonad wiki : https://xmonad.github.io/xmonad-docs/xmonad-contrib/XMonad-Layout-Magnifier.html

How important is this feature to you?

My workflow is impaired without it

How important do you think is this feature for the average LeftWM user?

Would probably be nice to have