How to get the correct background

[SebMtn]

First, thanks so much for this great repo!

I am trying to add a new page in the menu, say a page "Contact".

I added "Contact" in the menu.
Then I created the file : content/contact.md:

---
title: "Contact"
date: 2022-03-31T16:21:11+01:00
draft: false
---

Coming soon...

The background of this page is completely white, whereas I would like it to match the home page when in light mode (gray).

I tried to add layout: archives to the front matter, and this gives the correct background, but obviously I do not want this page to be archive.

So I copied the file themes/PaperMod/layouts/_default/archives.html to a file in my local layout dir (with a view to modify it), but it then didn't apply the correct background.

What is the correct way to have the layout of a generic page, with correct background?

Thanks!