Change lockscreen wallpaper on Xfce Kali Linux

After a lot of failures while searching for a solution in the net I am setting this again, this time for Kali 2020.1 release.

I have tried:

• Changing the images path referred in

  /usr/share/images/desktop-base/desktop-lockscreen.xml 
  

  to the desired. There wasn't any change after rebooting.

• Changing the images path referred in

  /usr/share/backgrounds/kali/kali-light.xml 
  

  to the desired. There wasn't any change after rebooting.

Any ideas?

You may have changed it by now but I'm answering this in case someone else may need it.

Option 1 - Terminal

Under /usr/share/desktop-base/kali-theme/login/ is a symbolic link named background. Update it with your desired image path.

Sample Command:
sudo ln -s <image_path> /usr/share/desktop-base/kali-theme/login/background

Option 2 - GUI

1. Click Menu > Settings > LightDM GTK+ Greeter settings
2. Authenticate if necessary
3. In the Appearance tab of the window, select an image/color under Background
4. Click Save

Reboot to take effect.