Unfortunately I couldn't get a Screenshot So you can see how it turned out, but I leave you the image that the author gives us. It was the same, but it has the logo of Debian. The result is beautiful 😀
Basically all they have to do is go down this file. Once it is down we unzip it, and open a terminal where we put:
$ sudo /home/usuario/carpeta_del_fichero/Oxygen/install.sh
The Script will take care of the rest for us.