diff --git a/config/desktop/focal/environments/mate/debian/postinst b/config/desktop/focal/environments/mate/debian/postinst
index 42c3cfd26a..216b8bded5 100644
--- a/config/desktop/focal/environments/mate/debian/postinst
+++ b/config/desktop/focal/environments/mate/debian/postinst
@@ -1,26 +1,27 @@
 # overwrite stock lightdm greeter configuration
 if [ -d /etc/armbian/lightdm ]; then cp -R /etc/armbian/lightdm /etc/; fi
-if [ -f /etc/lightdm/slick-greeter.conf ]; then sed '/^armbian03-Dre0x-Minum-dark-blurred-3840x2160.jpg s/armbian_4k_guss_green_resultado.jpg' /etc/lightdm/slick-greeter.conf; fi
+if [ -f /etc/lightdm/slick-greeter.conf ]; then sed '/^armbian03-Dre0x-Minum-dark-blurred-3840x2160.jpg s/armbian-4k-greeen-wall-penguin-gauss.jpg' /etc/lightdm/slick-greeter.conf; fi
 
 # Disable Pulseaudio timer scheduling which does not work with sndhdmi driver
 if [ -f /etc/pulse/default.pa ]; then sed "s/load-module module-udev-detect$/& tsched=0/g" -i  /etc/pulse/default.pa; fi
 
 # set wallpapper to armbian
 
-keys=/etc/dconf/db/local.d/00-bg
+keys=/etc/dconf/db/local.d/00-desktop
 profile=/etc/dconf/profile/user
 
 install -Dv /dev/null $keys
 install -Dv /dev/null $profile
 
 echo "[org/mate/desktop/background]
-picture-filename='/usr/share/backgrounds/armbian/armbian_4k_green_resultado.jpg'
+color-shading-type='vertical-gradient'
+picture-filename='/usr/share/backgrounds/armbian/armbian-4k-green-wall-penguin.jpg'
 picture-options='zoom'
-primary-color='#456789'
-secondary-color='#FFFFFF'
+primary-color='rgb(255,255,255)'
+secondary-color='rgb(0,0,0)'
 
 [org/mate/desktop/screensaver]
-picture-filename='/usr/share/backgrounds/armbian/armbian_4k_guss_green_resultado.jpg'
+picture-filename='/usr/share/backgrounds/armbian/armbian-4k-greeen-wall-penguin-gauss.jpg'
 picture-options='zoom'
 primary-color='#456789'
 secondary-color='#FFFFFF'" >> $keys