This script generates a nice wallpaper by using a random image from a selected folder.
The images are rescaled, inserted in a white frame with shadow, and with a random colored gradient that changes every time.
You need to install ImageMagick package.
1) replace the WALLDIR variable to point to your images dir.
2) change the timer delay (default=15 min)
3) make the script executable:
chmod u+x mysfondo_gnome.sh
4) run the script
p.s.: 'sfondo' is the italian translation of 'background'.