In Ubuntu 18.04, I noticed that directory /usr/share/themes
is where customized GTK themes, that beautify the Desktop and Lockscreen, are installed.
For customized GDM theme, i.e. theme use to beautify the GNOME Loginscreen and Unlockscreen, is /usr/share/themes
also the default directory to install them? Or, is /usr/share/gnome-shell/theme
the default directory to install customized GDM theme?
Clarification:
- The theme that I want to install is suppose to only change the looks of the GDM login and unlockscreen, not the desktop environment. I plan to use it via sudo update-alternatives --config gdm3.css. I think such a theme should not be found in user directory. Agree? For the desktop environment, I will use other user theme to change the look and use GNOME Tweaks to configure that.
- So between /usr/share/themes and /usr/share/gnome-shell/theme, which directory should I use to install customised GDM theme? I am leaning towards the latter. If it is the former, I am concern that the customised GDM theme would appear in gnome-tweaks theme and a user can mistakenly select it as a desktop theme. Correct?
Create a
.themes
directory in your home directory. (~/.themes)Install the
User Themes
GNOME extension from https://extensions.gnome.org/extension/19/user-themes/.Install/move new themes into ~/.themes.
Install
gnome-tweaks
, and select your desired theme there.Understand that poorly written themes can cause all kinds of problems with your GUI.
Update #1:
If you're talking about changes to the gdm3.css file, be forewarned that incorrect changes can lead to log in/out problems, and lock you out of your computer.
Modified .css files should probably be placed into
/usr/share/gnome-shell/theme/
.