sh change_gdm_background

Posted 2021-05-06

sudo cp -R gnome-shell-theme.gresource /usr/share/gnome-shell

glib-compile-resources gnome-shell-theme.gresource.xml

#lockDialogGroup {
  background: #2c001e url(background.jpg);         
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center; 
}

<?xml version="1.0" encoding="UTF-8"?>
<gresources>
 <gresource prefix="/org/gnome/shell/theme">
 <file>calendar-arrow-left.svg</file>
 <file>calendar-arrow-right.svg</file>
 <file>calendar-today.svg</file>
 <file>checkbox-focused.svg</file>
 <file>checkbox-off-focused.svg</file>
 <file>checkbox-off.svg</file>
 <file>checkbox.svg</file>
 <file>close-window.svg</file>
 <file>close.svg</file>
 <file>corner-ripple-ltr.png</file>
 <file>corner-ripple-rtl.png</file>
 <file>dash-placeholder.svg</file>
 <file>filter-selected-ltr.svg</file>
 <file>filter-selected-rtl.svg</file>
 <file>gnome-shell.css</file>
 <file>gnome-shell-high-contrast.css</file>
 <file>logged-in-indicator.svg</file>
 <file>filename</file>
 <file>more-results.svg</file>
 <file>no-events.svg</file>
 <file>no-notifications.svg</file>
 <file>noise-texture.png</file>
 <file>page-indicator-active.svg</file>
 <file>page-indicator-inactive.svg</file>
 <file>page-indicator-checked.svg</file>
 <file>page-indicator-hover.svg</file>
 <file>process-working.svg</file>
 <file>running-indicator.svg</file>
 <file>source-button-border.svg</file>
 <file>summary-counter.svg</file>
 <file>toggle-off-us.svg</file>
 <file>toggle-off-intl.svg</file>
 <file>toggle-on-us.svg</file>
 <file>toggle-on-intl.svg</file>
 <file>ws-switch-arrow-up.png</file>
 <file>ws-switch-arrow-down.png</file>
 </gresource>
</gresources>

#!/bin/sh
workdir=${HOME}/tmp/shell-theme
if [ ! -d ${workdir}/theme ]; then
 mkdir -p ${workdir}/theme
fi
gst=/usr/share/gnome-shell/gnome-shell-theme.gresource
for r in `gresource list $gst`; do
 gresource extract $gst $r >$workdir${r/#\/org\/gnome\/shell/}
done