Theme Splash Image within the "Appearance -> Themes" control panel
87283
Child theme preview missing
13461
How do I edit applications panel menu in Lubuntu?
30893
Design a custom Beamer theme from scratch
132664
How can I add a panel to the properties area of the file browser?
57493
Add a complex image in the panel, with buttons around it in one customized user interface
47909
Remove "Set as desktop background" from Windows context menu
44521
How to theme the maintenance mode page?
47429
How do I return to default wallpaper on login screen in LightDM?
109536
Worthwhile to restrict direct access of theme files?
95157
How do I change login screen theme or background in Ubuntu 20.04?
32920
setbackgroundtemplate on title page within custom theme file
141671
How to restrict users on changing their wallpapers?
57790
How to make a custom boot-up splash animation
31619
How to modify the system default background image
27183
What alternatives are available to replace the purple boot splash screen?
97026
Where to place custom beamer themes
28354
Overlay translucent image on desktop / above all windows