I have tried to apply dark themes from Ubuntu 14.04 on 16.04 and they do not come out entirely as expected (different colours and such). What native dark themes for Ubuntu 16.04 are out there? I would prefer a theme retaining the default Unity decorations and icons and simply tweaking colours, but other suggestions are welcome.
This seems to be a popular theme, albeit somewhat different from the original Unity. This theme also prefers cold colours producing an overall calming and comfortable desktop.
Update: After using this theme for a couple of weeks I must say this is the best I ever had with Unity. The choice and combination of colours is spot on, a serene and beautiful theme. Highly recommended.
This theme can be installed from the Nooblabs PPA:
sudo add-apt-repository ppa:noobslab/themes sudo apt-get update sudo apt-get install arc-theme
There is also an Arc icons theme, check more details at the NoobsLab webpage.
This theme introduces a number of modifications to window decorations and icons, but the end result is quite crisp. All the colours seem to have been well worked out, producing a nice desktop in different monitors.
sudo apt-add-repository ppa:tista/adapta -y sudo apt-get update sudo apt-get install adapta-gtk-theme
It might require some tweaking to get activated, check the details here or follow the steps below.
unity-tweak-tool to apply the newly installed theme using:
sudo apt-get install unity-tweak-tool
Now navigate to
unity-tweak-tool > Appearance > Theme to choose theme.
You can also try the Vivacious-zbackout theme.
Doesn't look great with Firefox. I'm trying to set different themes for GTK and Window theme to see if that helps, not working so far.
sudo add-apt-repository ppa:ravefinity-project/ppa sudo apt-get update sudo apt-get install vivacious-colors sudo apt-get install vivacious-folder-colors-addon sudo apt-get install vivacious-colors-gtk-dark