How to Enable Dark Gnome Shell Menus, Calendar in Ubuntu 20.04

Ubuntu 20.04 introduces new dark mode in the Settings utility.It is however not full dark when you turn it on in Gnome Shell.

System tray menu, top-bar calendar, notification popups, and desktop context menu are not dark but always light when you switching between light, dark, and standard modes.

Enable Full Dark Theme in Ubuntu 20.04:

1.) First install user themes Gnome Shell extension.

It was able to install the extension simply via Ubuntu Software when I was in Ubuntu 18.04. Ubuntu 20.04 however shows me “No Application Found” when I searching for user themes in the new Ubuntu Software (Snap Store).

  • As a workaround, open Firefox web browser and go to https://extensions.gnome.org :

    Click the link text “click here to install browser extension” and follow the pop-ups to install the browser extension:

    shell browser extension

  • Then open terminal via Ctrl + Alt + T and run command:
                              sudo apt install chrome-gnome-shell
                            

  • Finally go to https://extensions.gnome.org/extension/19/user-themes/ .

    Turn the switch on and then select install the Gnome Shell extension:

    User Themes extension

2.) Install Gnome Tweaks if you have it.

                      sudo apt install gnome-tweaks
                    

3.) Finally launch Gnome Tweaks and navigate to Appearance in the left pane, choose Yaru-dark as the Shell theme and done!

And of course select Dark in System Settings-> Appearance to get dark applications if you do n’t have it.

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