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Numix Flat - GTK 3 theme by me4oslav Numix Flat - GTK 3 theme by me4oslav
Numix Flat is the completely flat version of the Numix Theme. It is a modern and flat theme. It supports Gnome, Unity, XFCE and Openbox.

Numix Flat is a part of the Numix Project.

Available on Ubuntu Software Centre

Ubuntu users will be able to install the theme from the from Ubuntu Software Centre once it is reviewed there. We have submitted it for review already.

Manual installation

Extract the zip file to the themes directory i.e. /usr/share/themes/

To set the theme in Gnome, run the following commands in Terminal,

gsettings set org.gnome.desktop.interface gtk-theme "Numix Flat"
gsettings set org.gnome.desktop.wm.preferences theme "Numix Flat"

To set the theme in Xfce, run the following commands in Terminal,

xfconf-query -c xsettings -p /Net/ThemeName -s "Numix Flat"
xfconf-query -c xfwm4 -p /general/theme -s "Numix Flat"


GTK+ 3.4 or above

Extra Goodies

For official Numix artwork please visit this.
For additional Numix artwork - this.
User style for Chrome -

Known issues

To fix the small font issue in LibreOffice Calc sheet tabs, create a file .gtkrc-libreoffice in your home folder with the following content,

style "libreoffice-scrollbar" {
GtkScrollbar::trough-border = 3

widget_class "*" style "libreoffice-scrollbar"

Then launch libreoffice with the following command,

GTK2_RC_FILES=$HOME/.gtkrc-libreoffice libreoffice


License: Numix license.
Add a Comment:
groksteve Featured By Owner Dec 25, 2014
I'm getting some weird border issues in Gnome 3.14 (see screenshot here:…, any ideas on how to clean it up?
dodosuens Featured By Owner Jun 8, 2014
I have only 250 points in my account do you think i can get this theme...
dodosuens Featured By Owner May 11, 2014
how is this theme different from Numix light theme?
me4oslav Featured By Owner May 14, 2014  Professional Interface Designer
This one is completely flat.
jjshinobi Featured By Owner Feb 20, 2014
How exactly do I apply it to LibreOffice? lxappearance + awesomewm doesn't seem to work.
me4oslav Featured By Owner Feb 20, 2014  Professional Interface Designer
I will contact the GTK themes guy to tell you how.
Add a Comment:
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Numix Flat - GTK 3
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Submitted on
January 7, 2014
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Creative Commons Attribution-Noncommercial 3.0 License.