Flatabulous – Best Flat Theme for Ubuntu

Last updated: May 27, 2016


Flatabulous is a new GTK theme said to be the best flat theme for Ubuntu and other Gnome based Linux Systems.

The theme is based on the Ultra-Flat theme. It was designed specially for the Unity environment on Ubuntu. Here are some screenshots:

Flatabulous theme




Like the theme? Below is how to install the GTK theme as well as Ultra-Flat icon theme:

1. Download the GTK theme from the link below:

Flatabulous Theme Zip

Then extract the archive so that you have the result folder shown below:


2. Open a new Nautilus (file browser) window. Press Ctrl+H to view hidden file folders, and create .themes folder under user’s Home directory if not exist.


3. Move Flatabulous-master folder from the Downloads folder to .themes folder.


OK, now apply the theme by launching Unity Tweak Tool (available in Software Center) and navigate to Theme page.


For the Icon Theme, go to:

noobslab icon repository page

Select download .deb package for ultra-flat-icons, ultra-flat-icons-green, or ultra-flat-icons-orange. Finally install it via Ubuntu Software Center.

For those who prefer adding a PPA, open terminal and run below commands one by one to get the icon theme:

sudo add-apt-repository ppa:noobslab/icons

sudo apt-get update

sudo apt-get install ultra-flat-icons ultra-flat-icons-green ultra-flat-icons-orange

Also apply the icons via Unity Tweak Tool -> Icons page.

via: github.com/anmoljagetia/Flatabulous


I'm a freelance blogger who started using Ubuntu in 2007 and wishes to share my experiences and some useful tips with Ubuntu beginners and lovers. Please comment to let me know if the tutorial is outdated! And, notify me if you find any typo/grammar/language mistakes. English is not my native language. Contact me via [email protected] Buy me a coffee: https://ko-fi.com/ubuntuhandbook1

19 responses to Flatabulous – Best Flat Theme for Ubuntu

  1. YES! very attractive theme plus the icons are very good too. Highly recommended if you want a refreshed look to your Ubuntu Desktop. Easy to download & install. Much appreciated.

  2. Awesome !! thanx

  3. Hoover Campoverde November 22, 2015 at 8:37 pm

    Thank you Ji m. Now my Ubuntu 14.04.3 looks fancy. So easy to install this theme.

  4. repository is misspelled in the commands

  5. Very good theme! how can a make my terminal transparent?

    • Go to Edit -> Profile Preferences. Under Colors tab, select ‘use transparent background’ and set a value.

  6. How can I change it from Dark to Light? It’s installed Dark by default!

  7. Does this work with Ubuntu GNOME? Is there a way to guess this in general?

  8. which the theme of the sublime text ??

  9. I get an error command for the icons: “impossible to find the pack ultra-flat-…”

    How can I correct it?

    sudo apt-get install ultra-flat-icons ultra-flat-icons-green ultra-flat-icons-orange
    Lecture des listes de paquets… Fait
    Construction de l’arbre des dépendances
    Lecture des informations d’état… Fait
    E: Impossible de trouver le paquet ultra-flat-icons
    E: Impossible de trouver le paquet ultra-flat-icons-green
    E: Impossible de trouver le paquet ultra-flat-icons-orange

  10. Folks,
    Ultra Flat Icon PPA got ready. Now, you can able to install on Ubuntu 16.04.

  11. Worked perfectly on Ubuntu 16.04. Used PPA to install icons. Thank you.

  12. Finbarr Saunders May 27, 2016 at 2:20 pm

    I just wish that the power/log-off icon in the menu bar was not bright red – just doesn’t fit with the rest of the theme.

  13. Works Perfect on 16.04!!

    ps: what is the name of that wallpaper?

    • Abstract Ubuntu by Marek Koteluk. It’s available by default, just select it in System Settings \ Appearances.