I have always wondered if installing themes and changing setting seen on CCSM (CompizConfig Settings Manager) possible manually. If so how can I manually install and change a theme using a command line?
Once downloaded and placed in the theme
Unity, GNOME 3 Shell/Classic, Cinnamon:
Install theme at here and then change your theme using gnome tweak tool or unity tweak tool
Gnome tweak tool screenshot
Using gsettings commands to change icons/theme/gtk