How to change the background login image on Manjaro

Introduction

Recently, I wanted to change my background login image on Manjaro, but no parameters like changing the desktop background.

It's already been several times that I reinstall a Manjaro instance, and each time I forget how to do it. So here is a post of how I did it. You'll see it's very, very easy.

Let's get starting !

Copy your image

Open your terminal and get SUDO perms, you can copy your beautiful photo to another folder like Images/ or Documents/ with the command cp.
Help ? How to use cp command

Edit configurations

With the terminal,

sudo nano /etc/lightdm/lightdm-gtk-greeter.conf

You have something that looks like this :

[greeter]
background = /usr/share/backgrounds/illyria-default-lockscreen.jpg
user-background = false
font-name = Cantarell Bold 12
xft-antialias = true
icon-theme-name = Adapta-Papirus-Maia
screensaver-timeout = 60
theme-name = Matcha-sea
cursor-theme-name = xcursor-breeze
show-clock = false
default-user-image = #manjaro
xft-hintstyle = hintfull
position = 50%,center 57%,center
clock-format =
panel-position = bottom
indicators = ~host;~spacer;~clock;~spacer;~language;~session;~a11y;~power
hide-user-image = true

Edit the background line with your file, and it's done !

Photo by Jordan Steranka on Unsplash