Gnome3

sudo add-apt-repository ppa:gnome3-team/gnome3-staging
sudo apt update
sudo apt install ubuntu-gnome-desktop

customize environment with gnome-tweak-tool

sudo apt-add-repository ppa:numix/ppa
sudo apt-get update
sudo apt install numix-gtk-theme numix-icon-theme-circle numix-folders numix-wallpaper-aurora numix-plymouth-theme

sudo apt-get install gtk-theme-switch
gtk-theme-switch2

sudo add-apt-repository ppa:ne0sight/chrome-gnome-shell
sudo apt-get update
sudo apt-get install chrome-gnome-shell

https://extensions.gnome.org/

• https://extensions.gnome.org/extension/120/system-monitor/
• https://extensions.gnome.org/extension/906/sound-output-device-chooser/
• https://extensions.gnome.org/extension/779/clipboard-indicator/
• https://extensions.gnome.org/extension/8/places-status-indicator/
• https://extensions.gnome.org/extension/570/todotxt/
• https://extensions.gnome.org/extension/1112/screenshot-tool/
• https://extensions.gnome.org/extension/495/topicons/