Boxed layout

Hi,

I am really impressed with the theme so far, but I am facing an “issue”.

So far I could not find a boxed layout in the settings. I thought I found the perfect theme but this could be a deal breaker.

I would like to have a boxed layout in a similar fashion as your website:
https://themeisle.com/blog/migrate-medium-to-wordpress/

Basically a gray background with a boxed content.

Possible with this theme ?

Thank you.