How to get old gnome Ubuntu look back

Some of us dont like the new look of ubuntu , all the MAC look , so

if you just like to get back to normal :

1) Log-off your computer.
2) Click on your username.
3) Then select “Gnome” at the bottom of your PC. "or ubuntu classic"
4) Then type your password and login.
5) And you get your beautiful gnome look back.