The url of the background image is in http

Hi! There are plugins to change http to https. Check here – https://www.wpbeginner.com/wp-tutorials/how-to-add-ssl-and-https-in-wordpress/

Or at this link you can find the code to change http to https via htaccess file: https://css-tricks.com/moving-to-https-on-wordpress/

# Force HTTPS
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]

Hi, thanks for your answer!

I have already done all this and unfortunately https://none in your theme code is not changed (or it just returns after being changed, I don’t know exactly).

hi @gwenn22!

you can change css by using custom css option in the customiser:

.site .background-fixed {
background-image: '';
}

Hi,
I finally changed the theme (for other reasons), thanks anyway for your help!

@gwenn22, oh, good luck with your new theme!