Yes, it should be the Pixel desktop…
I think that is the raspberrypi-ui-mods line, but I added just a couple of components in my command.
To install all the options in Pixel you would probably need some more features, like:
#Install PIXEL (Pi Improved Xwindow Environment, Lightweight)
sudo apt-get install -y pi-greeter raspberrypi-ui-mods raspberrypi-artwork raspberrypi-bootloader
sudo apt-get install -y pix-icons pix-plym-splash pixel-wallpaper
sudo apt-get install -y rpi-chromium-mods
sudo apt-get install -y python-sense-emu python3-sense-emu
sudo apt-get install -y python-sense-emu-doc realvnc-vnc-viewer
And to change your setup to gui as default:
sudo raspi-config
select bootoptions
select Desktop /CLI
select Desktop Autologin Desktop GUI
Or use: startx from the terminal to run gui from terminal
Good luck 
T.