gnome-tweak-tool: customize fonts, themes, shell extensions, enable desktop and window's buttons (minimize, maximize)

gnome-tweak-tool is a nice simple tool for customizing fonts, themes, shell extensions...

To install it, enter the following command:

$ su -c "yum install gnome-tweak-tool"

To run it, press Alt+F2 and type in 'gnome-tweak-tool'. Simple selecting the options performs the changes. 

Some changes may require logging out and logging back in: type 'r' or 'restart' in Alt+F2 prompt to restart Gnome shell and see the changes.