Apply GTK3 theme systemwide

Question

Task / Problem:

I have a self-created gtk3-theme in ~/.local/share/themes/mytheme/gtk-3.0/gtk.css. I would like to apply that style systemwide. How would I do that?

System:

XUbuntu 19.04
GTK version: 3.24

What I did / have:

Prepare ~/.local/share/themes/mytheme/gtk-3.0/gtk.css
Created ~/.local/share/themes/mytheme/index.theme with the following content:

Type=X-GNOME-Metatheme
Name=mytheme
Comment=mytheme
Encoding=UTF-8

[X-GNOME-Metatheme]
GtkTheme=mytheme
MetacityTheme=mytheme
ButtonLayout=:minimize,maximize,close

Created ~/.local/share/themes/mytheme/gtk-3.0/gtk.gresource.xml with the following content:

<?xml version='1.0' encoding='UTF-8'?>
<gresources>
    <gresource prefix='/usr/darktrick/gtk-3.0'>
        <file preprocess='to-pixdata'>images/icon_close.png</file>
        <file preprocess='to-pixdata'>images/icon_close_active.png</file>
        <file preprocess='to-pixdata'>images/icon_maximize.png</file>               
        <file preprocess='to-pixdata'>images/icon_minimize.png</file>       
        <file>gtk.css</file>
    </gresource>
</gresources>

Tested css with GtkInspector (under CSS): worked fine
Theme is available in GtkInspector under Visual to be applied manually.
edit: I have chosen mytheme through the WindowManager dialog.

It's not quite clear: have you set it as your gtk theme via settings dialog? — Alexander Dmitriev, Jul 23 '20 at 13:39
Thanks. I added an edit: I've chosen the theme through the Window Manager dialog — DarkTrick, Jul 23 '20 at 15:42

score 0 · Answer 1 · answered Jul 27 '20 at 11:58

0

I stumbled across the answer.

Open "Settings Editor" -> channel "xsettings" -> Net -> ThemeName -> Type the folder name of the theme you'd like to have applied

answered Jul 27 '20 at 11:58

DarkTrick

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Apply GTK3 theme systemwide

Task / Problem:

System:

What I did / have:

1 Answers1