How to Change Kali Linux Login Screen Theme

hello,,, it's been a long time I have not write on this blog, as I have many things to do at my college, haha. Now I will write about my last trial, that is how to Change the Kali Linux Login Screen like this.

first, move your image to /etc/gdm3 directory like this

 then, chmod 777 your image, so it can be read by every user. this command is in my case, you just adjust it with your image

chmod 777 /etc/gdm3/sniper_gunslinger.png

and edit the greeter.gsettings with your favorite text editor,

gedit /etc/gdm3/greeter.gsettings

after your text editor opened greeter.gsettings, then uncomment this scripts below and change the blue text with your image directory. do you know how to uncomment these scripts? it's simple, you just need to delete those 'sha' (#) in front of script

 #[org.gnome.desktop.background]

#picture-uri='file:///etc/gdm3/sniper_gunslinger.png'

#picture-options='zoom'

save that and reboot your machine. and voila, your Kali Linux login screen theme is changed as you want
this link is for you if you want my complete greeter.gsettings