Ubuntu costumize

• Installing new theme in Ubuntu
  

1. System >> Preferences >> Apearance
2. After window apearance appears, click install button
3. Choose a theme that will be installed, then click open
4. Automatically the theme will be in the theme list, then just click the theme from theme list to apply/use it.

• Installing GDM Theme / Login Window :

1. Click System >> Administration >> Login Window
2. Choose Local Tab>> then Click add button
3. Find the theme that would be installed, then click the install button
4. Automatically the theme would be in theme list, choose Login theme that would be used by clicking the theme from theme login list.

theme dan GDM theme can be downloaded from here