How to Install Cinnamon 3.0 Desktop Environment in Ubuntu 16.04 LTS

Cinnamon 3.0 packs a few interesting goodies, such as a brand new Sound settings panel rewritten in Python, support for muting all volume controls at once, or the renaming of the “Natural scrolling” Touchpad option to “Reverse scrolling direction.” Other exciting new features introduced in Cinnamon 3.0 include the ability to disable all extensions at once, two-finger scrolling and edge-scrolling support for modern laptops, the ability to rename battery powered devices, better GTK 3.20 support, as well as many useful window management and accessibility tweaks.