Scribe deleting site content max-width 800px

Hello,

I've just discovered the Scribe theme in the library and I like it very much so I'm thinking about changing mine for this one.
I've done a staging site to have a look and tweak some settings but for the article part I don't like to have a max-width of 800px. I would like to be able to change it but I can't find where. As it doesn't have the same options that my current theme has, when I searched where it was for my current theme, well it wasn't for the Scribe theme. I know it is that thing that is blocking the blog width because I inspected the code to find out what was blocking it. And the code is:

<div id="content" class="site-content"> flex
And inside there is

#content {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

It's when I deactivated the max-width that the article could fill-in the page.
I hope I'm making myself clear with this explanation haha. I'm sharing 2 images for better understanding in case of, I erased the image then you'll be able to understand better what I mean with the text article.

So my question is where in the Scribe theme settings I could change the max-width to what I want ?