How can I change the GUI?
63918
Is there an Ubuntu theme available to make it look like Windows 7?
41285
How to properly edit system files (as root) in GUI (and CLI) in Gnu/Linux?
9527
How can I change GNOME Shell theme?
120324
How do I modify the options for the power button?
134369
How can I create a new Ubuntu desktop environment/window manager?
61175
How do I get to the GUI after switching to a virtual console?
55561
How to change desktop background from command line in Unity?
23477
How do I switch between console mode and GUI in 17.10 and newer?
56484
How to run a complete GUI as root?
72049
Does Unity have any widgets?
99436
How to change GTK+ theme?
42905
How do I change keyboards from the command line?
77988
Java AWT/SWT/Swing: How to plan a GUI?
105076
How to change the prompt in Linux?
11093
How do I reset my Unity configuration?
143068
GUI not starting in Ubuntu 17.10
50295
How to connect a GUI button to function?