OiOS Change your login wallpaper or GDM

Its the objective of many integrators or individuals to make the system personal or customised. Changing the login screen wallpaper is easy and straightforward. Find the theme you think is suitable in the correct format (a good site is http://gnome-look.org).Open the file system and locate the user file.Click on this, go to the Share file, and locate the GDM file.Open this file as administrator (right click) by using your root password.Select the wallpaper file and replace it with the new file carefully giving it the default file name.It maybe a good idea to retain the old wallpaper by renaming it and leaving it in the file just incase you wish to come back to it.Now log off the system and restart.