How to style the editor when it gains focus?

[lecoqlibre]

How do we change the style applied to the editor when it gains focus? I did not find the solution in the exemples.

Can we change the theme passed to the <ThemeProvider /> ?

Thanks!

[DurivetMatthias]

Looking to do the same.
I tried building around this myself.

In my case the Editor needs to be wrapped in a React.memo() to avoid infinite re-renders
But that is also stopping the style changes from applying

[galdahan]

Looking to do the same.